Guillermo del Toro's unrealized projects

Del Toro spent three years preparing to direct his first feature—a claymation sci-fi film titled Omnivore—in the early 1990s. The premise focused on the plight of a lizard-man born in a savage land where everything tries to eat everything else. Del Toro was inspired by Mexican stop-motion sculptor Marcel Delgado to create a different kind of monster film, and had written the story entirely in the Uto-Aztecan language Nahuatl. "It was a very late teens, early twenties, underground comix-type of story," del Toro said of the project in 2023. "Very pop, heavy metal."[1] With the help of his brother and then-girlfriend, 120 puppets were fabricated in clay, and sets were built, but were left unattended and then vandalized. "They had destroyed every puppet, they had pooped and peed on the floor. And I turned around and I said, 'I'm gonna do Cronos. I'm gonna do a live action movie'."[2] The only surviving materials from Omnivore were del Toro's storyboards, which were lost over time following several moves.

Meat Market, an original screenplay by del Toro, which he described as "Hamlet in a meat market, by the way of Phantom of the Opera". Del Toro wanted Ron Perlman to star in the lead role, but lost interest in pursuing the project when he believed Perlman had become too old to play the part.[3]

Del Toro wrote an adaption of Christopher Fowler's novel Spanky entitled Mephisto's Bridge. Del Toro wrote the first draft of the script in 1994 and the film nearly went into production in the mid-2000s, but it did not go beyond pre-production.[3]

In 1994, del Toro began writing an adaptation of Alexandre Dumas's The Count of Monte Cristo, which he titled The Left Hand of Darkness. His version was set in Mexico and was what he described as a "steampunk gothic western".[3]

Del Toro was attached to direct an adaptation of Mark Frost's 1993 novel The List of Seven. Frost himself wrote a draft of a screenplay before the project was cancelled.[3]

Around 1995, before directing Mimic, del Toro approached George R. R. Martin with the intent to make a film adaptation of his famous novelette Sandkings,[4] but the project was quickly scrapped after the novel was adapted into the first episode of the television series The Outer Limits.

In the late 1990s, del Toro expressed interest in directing a live-action film adaptation of Katsuhiro Otomo's Domu: A Child's Dream. In 2002, after the success of Blade II, del Toro said that he tried to make the film in the following years, but his efforts were hamstrung by international legalities.

"Goddamn it, we haven't even got the rights. We've been negotiating the rights for four years, which goes to prove Japanese lawyers are even more complex than American lawyers. The moment we have the rights I would go ahead and write it."[5]

Soon after its publication, James Cameron optioned a screen adaptation of Phil Hester and Gary Peterson's 2001 horror comic The Coffin. Cameron tapped del Toro to write and direct the film via Lightstorm Entertainment after he had finished shooting Blade II.[6] Despite the completion of a script,[7] the project never came to pass, and both del Toro and Cameron would both move onto other projects.

In August 2002, del Toro, a fan of the original Creature from the Black Lagoon, was in talks with Universal to direct a remake.[8] He envisioned a film that would focus more on the creature's perspective, where the Creature ended up together with the female lead, though the studio rejected the concept and would replace del Toro with another director.[9] Del Toro would later realize this concept in 2017's The Shape of Water.

In 2003, del Toro reported that he was working with The Walt Disney Company on an animated film adaptation of Kenneth Grahame's novel The Wind in the Willows. The film would have been animated using CGI animation, but the project was abandoned following many delays. The director explained why he had to leave the helm; "It was a beautiful book, and then I went to meet with the executives and they said, 'Could you give Toad a skateboard and make him say, "radical dude" things?' and that's when I said, 'It's been a pleasure ...'"[10][11]

In approximately 2003, New Line Cinema hired del Toro to keep him on as director for Blade III, due his directing work on Blade II. However, del Toro left the film in order to direct Hellboy.[12] Blade III film ended up becoming the critically panned Blade: Trinity, directed by screenwriter David S. Goyer, and released in 2004.

Del Toro had been approached to direct Harry Potter and the Prisoner of Azkaban, the third installment of the Harry Potter film series based on J. K. Rowlings' novel of the same name. However, he had envisioned a more Dickensian version of the stories, and was put off by the first two films which he found too "bright and happy and full of light". The film would instead be directed by his close friend Alfonso Cuarón. Del Toro later expressed interest in helming the seventh and eighth installments in the series, if he was allowed to do them on his own terms.[13]

Del Toro was asked to direct The Chronicles of Narnia: The Lion, the Witch and the Wardrobe, but he revealed he turned it down because, as a "lapsed Catholic," he couldn't see himself bringing the lion Aslan back to life in the story. Instead, del Toro directed Pan's Labyrinth.[14]

In 2005, New Line Cinema purchased the feature spec script A Killing on Carnival Row, written by del Toro and Travis Beacham. Del Toro was attached to direct the film, though he would leave to pursue other films, as this was stuck in development. The original script was centered on a detective who investigates a serial killer that preys on mystical creatures, only to find that he himself has become the prime suspect of the murders. In 2015, del Toro and Beachum revived the project, setting it up as a TV at Amazon Studios, now titled Carnival Row. Del Toro was set to co-write a pilot version of the feature script with Beacham and René Echevarria, though he would later depart from the series due to his preoccupation with the production of The Shape of Water.[15]

On September 13, 2005, Warner Bros. approached del Toro to direct the third film adaptation of Richard Matheson's novel I Am Legend.[16] However, del Toro left to direct Hellboy II: The Golden Army instead. I Am Legend was finally released in 2007, directed by Francis Lawrence.

Del Toro was the original director of Pan, which was first acquired by New Line Cinema in 2006. A darker version of the J. M. Barrie story, the project was delayed due to New Line's other commitments.[17] It was later revived in 2011, and released in 2015 to critical dismay.

On December 15, 2006, ComingSoon.net reported that del Toro was in talks to direct a Tarzan film.[18] Then, in September 2008, Slashfilm.com reported that Stephen Sommers had replaced del Toro as director.[19] Another film version, released in 2016 under the title The Legend of Tarzan, was directed by David Yates.[20]

In 2007, del Toro and Neil Gaiman pitched a film based on the Doctor Strange character to Marvel Studios, with Gaiman writing and del Toro directing.[21] This version would have seen the character as an alcoholic, disbarred physician in the late 1920s/1930s living in Greenwich Village for 90 years without aging. It would have also been heavily inspired by the art of Steve Ditko. Gaiman was especially interested in including the character Clea, but the studio was not interested. A film based on Doctor Strange would later be made in 2016, directed by Scott Derrickson.

On November 8, 2007, it was reported del Toro was working on a spiritual sequel to Pan's Labyrinth called 3993, intended to be the third and final installment of a Spanish Civil War film trilogy.[22] However, del Toro scrapped the project after deciding to direct Hellboy II: The Golden Army.[23] In October 2022, del Toro confirmed that Pinocchio was the last in the Childhood and War trilogy.[24]

On February 8, 2008, it was reported that del Toro was in talks to direct a film adaptation of the Halo video game series.[25] However, he chose instead to focus on The Hobbit film adaptation.

On April 20, 2008 at the New York Comic Con, del Toro revealed that he had just begun sketching and pursuing concepts for a film which would be titled Saturn and the End of Days. Del Toro described it as a "little movie about childhood and horror" about a kid named Saturn who watches the world end while walking back and forth from the supermarket.[26]

On April 24, 2008, it was officially reported that del Toro would direct a two-part film adaptation of J. R. R. Tolkien's fantasy novel The Hobbit.[27] Del Toro envisioned the first film as a direct adaptation of the novel, with the second bridging the gap between The Hobbit and the Lord of the Rings films. After spending two years in New Zealand working on pre-production, del Toro left the project due to ongoing delays and was replaced by Peter Jackson. The films were expanded to a trilogy during production, with del Toro still credited as co-writer of all three.[28][29][30]

On July 10, 2008, del Toro expressed his interest in directing a third Hellboy film, saying that he would work on the film after finishing The Hobbit.[31] In 2010, during the production of the unmade At the Mountain of Madness, del Toro mentioned that he would direct Hellboy III after his next project, even though the script was not yet written.[32] However, on July 8, 2013, del Toro said that the film was unlikely to be released, and suggested the possibility of telling its story in comic book form. Hellboy creator Mike Mignola refused to accept the idea.[33] In a Reddit AMA on July 11, 2014, del Toro said:

"Well, you know, we don't have that movie on the horizon, but the idea for it was to have Hellboy finally come to terms with the fact that his destiny, his inevitable destiny, is to become the beast of the Apocalypse, and having him and Liz face the sort of, that part of his nature, and he has to do it, in order to be able to ironically vanquish the foe that he has to face in the 3rd film. He has to become the beast of the Apocalypse to be able to defend humanity, but at the same time, he becomes a much darker being. It's a very interesting ending to the series, but I don't think it will happen. ... We have gone through basically every studio and asked for financing, and they are not interested. I think that the first movie made its budget back, and a little bit of profit, but then it was very very big on video and DVD. The story repeated itself with the second already, it made its money back at the box office, but a small margin of profit in the release of the theatrical print, but was very very big on DVD and video. Sadly now from a business point of view all the studios know is that you don't have that safety net of the DVD and video, so they view the project as dangerous."[34]

On September 26, 2016, Ron Perlman stated on Twitter that he was working on a new Hellboy film, but that del Toro was unlikely to return.[35] On February 21, 2017, del Toro announced on Twitter that the third Hellboy movie had been scrapped.[36] A reboot was released in April 2019 with no involvement from del Toro. In July 2019, Perlman said that he would still love to finish the trilogy with del Toro, ignoring the reboot, and that he thought it could happen if financing could be found.[37]

Sometime in 2008, del Toro was hired to direct a Thor film for Marvel Studios.[38] Because of his admiration of Jack Kirby's work, del Toro entered into negotiations to direct the film. He said that he loved the character of Loki, and wished to incorporate more original Norse mythology into the film; including a "really dingy Valhalla, [with] Vikings and mud".[39] However, by September, del Toro had left the project to direct The Hobbit film adaptation. Thor was instead directed by Kenneth Branagh, and released in 2011.

Del Toro's unrealized film version of Frankenstein was first set up through his three-year first-look picture deal at Universal Pictures in September 2008, alongside a slate of films he was announced to direct including Dr. Jekyll and Mr. Hyde, Slaughterhouse-Five and Drood.[40] If made, he said it would not be a direct adaptation of Mary Shelley's novel, but rather an adventure story that involves the monster.[41] A long-time dream project for del Toro, he first envisioned Doug Jones in the role of the monster and had initiated makeup tests with the actor in 2009.[42] Jones later stated that the monster's design was based on Bernie Wrightson's art, sighting del Toro as a big fan of Wrightson.[43] Jones also commented that the main reason the project was shelved was due to Universal's future plans for their Dark Universe franchise.[43] In 2013, del Toro expressed interest in casting Benedict Cumberbatch for the role.[44] In 2020, in an interview promoting the film Antlers, del Toro stated that if he had the funding, he would make an adaptation of Frankenstein that would span two to three films due to the book's complexity and changing points of view.[45] In 2023, the project was revived by Netflix, who del Toro had signed a multi-year deal with to produce projects. Following the win of Pinocchio at the 95th Academy Awards for Best Animated Feature, Variety revealed that he is set to write and direct the feature with Andrew Garfield, Oscar Isaac and Mia Goth in early talks for potential roles.[46]

On September 3, 2008, it was reported that del Toro was signed by Universal Pictures to direct a film of the Jekyll and Hyde story that would be a more faithful adaptation of Robert Louis Stevenson's original novella.[40]

Also through his three-year picture deal at Universal, del Toro planned "a more literal interpretation" of the Kurt Vonnegut novel Slaughterhouse-Five than shown in the 1972 film adaptation. "There are ways that Vonnegut plays with and juxtaposes time that was perhaps too edgy to be tackled on film at that time," said del Toro.[40] In July 2013, del Toro revealed that he and screenwriter Charlie Kaufman had planned how they had wanted to adapt the work, though del Toro joked; "How can I commit to it being my next movie until there's a screenplay? Charlie Kaufman is a very expensive writer!"[44]

The fourth project del Toro had set up at Universal in September 2008 was a film adaptation of Drood, a novel by Dan Simmons.[40] He planned to direct the film after leaving the production of The Hobbit.[42]

In December 2008, del Toro expressed interest in making a stop-motion film remake of Roald Dahl's novel The Witches with fellow director Alfonso Cuarón.[47] No further developments on the potential project emerged until June 2018, when Robert Zemeckis signed on as director of a live-action adaptation. Del Toro remained as screenwriter and producer on The Witches, which was released in 2021.[48]

On June 10, 2010, del Toro was reportedly working on a film treatment based off the Dracula character Van Helsing, to be produced for Universal.[49] Tom Cruise was involved to produce and star in the potential project, which del Toro abandoned to focus on his At the Mountains of Madness adaptation.[50]

On July 28, 2010, del Toro announced that he would direct a film adaptation of H. P. Lovecraft's At the Mountains of Madness for Universal Pictures, with James Cameron producing. The film was originally set up as a DreamWorks Pictures project in 2004, but was later cancelled.[51] Cameron suggested casting Tom Cruise in the lead role and releasing the film in 3-D.[52] On October 28, 2010, del Toro said that the adaptation probably would not happen at all. He stated, "It doesn't look like I can do it. It's very difficult for the studios to take the step of doing a period-set, R-rated, tentpole movie with a tough ending and no love story. Lovecraft has a readership as big as any best-seller, but it's tough to quantify because his works are in the public domain."[53] Cameron and del Toro put forward the idea to Universal, who greenlit it.[54] Earlier that same year, del Toro had also asked S. T. Joshi if he wanted to be a consultant once the film got into production.[55] However, due to many delays, Cameron and del Toro left the project.

It was announced on July 22, 2010 at San Diego Comic-Con International that a new film based on Disneyland's The Haunted Mansion park attraction was in development with del Toro writing and producing. Del Toro saw the 2003 film with his daughters; when asked about his involvement in the new project, he said, "The thing I want to do is remake it."[56] Elaborating, he commented, "The movie I see in my head of Haunted Mansion is not, I believe, what everyone is imagining it to be. It's not just a regular world with a haunted mansion plopped in the middle. I really am thinking of a movie that has a heightened reality."[57] Del Toro said that Hatbox Ghost would be the main haunting[57] and added, "We are not making it a comedy. We are making it scary and fun at the same time, but the scary will be scary." It is to be filmed in live-action 3D.[58] To help make a respectful adaptation, del Toro has contacted Walt Disney World Imagineer Jason Surrell, author of The Haunted Mansion: From the Magic Kingdom to the Movies, to act as a possible consultant for the film.[59] Del Toro has also announced he is aiming for a PG-13 rating for The Haunted Mansion.[60] On August 7, 2012, Del Toro mentioned in an interview with Collider that he had submitted his final draft to Disney, and that "they like the screenplay" because "their reaction to the draft was good".[61] Del Toro revealed that he will co-write the film, but will not direct it.[62] On April 9, 2015, Variety reported that Ryan Gosling is in talks to star in the film and D.V. DeVincentis will work on the film's script.[63] On September 4, 2016, Brigham Taylor signed on to co-produce the film.[64] In August 2019, del Toro stated that he was unsure if the film would be produced though he had a good feeling about the scripts. "My gauging of interest is moot but I would love to see a "Haunted Mansion" movie by someone who loves it".[65] The film was later revived and set to be released in 2023, with Justin Simien as director.

In September 2010, del Toro was selected for the director's position on Man of Steel, but eventually left the project because of his commitment on a film adaptation of At the Mountains of Madness.[66]

In November 2010, del Toro was in talks with Marvel Television to make a TV series titled The Hulk. The series was intended to be aired on ABC.[67] However, after Mark Ruffalo's performance as the Incredible Hulk in The Avengers (2012), the project was put on hold.[68]

On December 11, 2010, at the Spike Video Game Awards, del Toro reported that he was working on a video game entitled Insane, planned for release in 2013.[69] Two days later, he revealed that the game was to be the first entry of an Insane video game trilogy.[70] On March 11, 2011, Fanboy Confidential reported that Guy Davis, who previously worked on del Toro's unmade adaptation of At the Mountains of Madness, was working as key designer.[71] However, on August 16, 2012, IGN reported that the video game was cancelled by the publisher THQ.[72] Despite this, three months later del Toro stated that the game could still happen.[73]

On July 18, 2011, TheFilmStage reported that del Toro was developing a live-action film of the classic fairy tale and Disney film Beauty and the Beast, with Emma Watson to star as Belle and Denise Di Novi to co-produce.[74] However, del Toro's adaptation never materialized, though Watson did play the role of Belle in The Walt Disney Company's 2017 live-action remake.[75]

In April 2012, Deadline Hollywood reported that del Toro was involved in the development of a biopic about serial killers The Bloody Benders.[76]

In July 2012, prior to Pacific Rim's release, del Toro noted that he had ideas for a sequel,[77] noting in 2014 that he had been working on a script with Zak Penn for several months.[78] In June 2014, del Toro stated that he would direct the sequel, and that it would be released by Universal Pictures, Legendary's new financing and distribution partner, on April 7, 2017.[79] In July 2015, it was reported that filming was expected to begin in November, though production was halted following conflicts between Universal and Legendary. As the sequel's future became unclear, Universal indefinitely delayed the film.[80][81] Still determined to have the film made, del Toro kept working and by that October announced that he had presented the studio with a script and a budget.[82] In February 2016, the studio, and del Toro himself via Twitter, announced that Steven S. DeKnight would take over directing duties, with a new script written by Jon Spaihts, marking DeKnight's feature directorial debut. Del Toro remained on the project as a producer.[83] Derek Connolly was brought in on May 12, 2016, to rewrite the script again.[84]

Around August 2012, del Toro was in negotiations with 20th Century Fox to direct The Wolverine. He had met with producer Jim Gianopulos and actor Hugh Jackman to talk about the film's development,[85] though he would eventually leave the production to pursue other projects. The film was finally released in 2013, directed by James Mangold.

In January 2013, del Toro confirmed his involvement in a live-action film adaptation of the Justice League Dark comic series.[86] While Warner Bros. was considering greenlighting the film's production, and reviewing the script written by Michael Gilio,[87] del Toro revealed that the working title was Dark Universe and that the film would feature appearances by John Constantine, Swamp Thing, The Spectre, Deadman and others.[88] Del Toro later expressed interest in casting Matt Ryan as John Constantine, saying that the Constantine TV series could coexist with the DC Extended Universe, because he felt that it could work well,[89] but when the series was not renewed for a second season due to poor ratings, del Toro scrapped the idea.[90] In December 2014, one month after Warner Bros. reviewed his script, del Toro confirmed that the film would be part of the DC Extended Universe.[91] In October 2015, it was officially reported that del Toro had left the project.[92]

In April 2013, it was revealed that del Toro and HBO were collaborating on a pilot for a live-action TV series based on Naoki Urasawa's manga Monster.[93] Co-executive producer Stephen Thompson was writing the pilot, while del Toro was to direct it and be an executive producer alongside Don Murphy and Susan Montford.[94] In 2015, del Toro told Latino-Review that HBO had passed on the project and that they were in the process of pitching to other studios.[95]

In 2014, Hero complex reported that del Toro was working with game director Hideo Kojima on the PlayStation 4 video game Silent Hills, the ninth installment in the Silent Hill video game series.[96] However, on April 26, 2015, del Toro stated via IGN that he was no longer working with Kojima on Silent Hills and that the project had been cancelled.[97][98] Then, on July 24, del Toro stated via his Twitter account that he and Kojima were still working on a new untitled project, which later became Death Stranding.[99] In an interview with Shacknews, del Toro said that he would never again get involved in video games after his past experiences.

"I have proven to be the albatross of video games. I joined THQ, and THQ goes broke. I join Kojima, and Kojima leaves Konami, because Metal Gear. I have decided, in order not to destroy anyone else's life, I have decided I will never again get involved in video games. Otherwise, I'll join someone and his house will explode, or something."[100]

Del Toro first expressed interest in adapting Stephen King's Pet Sematary into a feature film in 2015, calling the original work "unrelentingly dark and emotional."[101][102] In 2021, del Toro reconfirmed his interest to make a film of the novel someday, despite the then-recent release of another adaptation.[103][104]

On January 7, 2016, del Toro was in talks to direct a remake of Richard Fleischer's Fantastic Voyage for 20th Century Fox, along with the announcement that David S. Goyer and Justin Rhodes would be the writers and that James Cameron would produce the film through Lightstorm Entertainment.[105] In August 2017, it was reported that del Toro had postponed working on the film to completely focus on The Shape of Water.[106]

On January 14, 2016, it was announced that del Toro would write the screenplay to Scary Stories to Tell in the Dark, as well as direct, and that he would also produce along with Sean Daniel, Jason Brown, and Elizabeth Grave.[107] In February 2016, CBS Films hired The Hageman Brothers to polish the draft.[108] In December 2017, it was reported that André Øvredal would direct the film.[109] The Hagemans received final screenplay credit, with del Toro, Patrick Melton, and Marcus Dunstan receiving "story by" credit.[110]

At the Lumière Film Festival in 2017, festival head Thierry Frémaux announced that del Toro would be making a documentary about Michael Mann.[111][112] The following month, del Toro confirmed that he would be holding two-week interviews with Mann and George Miller, and explore the craftsmanship of both directors.[113]

David S. Goyer and del Toro collaborated on a potential Star Wars film about Jabba the Hutt, with Goyer as the writer and del Toro as director. They began working on it after the success of Rogue One, but after the failure of Solo: A Star Wars Story, Disney would cancel several Star Wars projects. A script was completed and concept art made, but in 2019 the project was officially abandoned.[114][115]

In March 2019, del Toro was attached to write and direct the action film Zanbato, about a young girl with lethal fighting skills, for Paramount Pictures and J. J. Abrams' Bad Robot Productions. According to del Toro, as of the announcement, the film had been in development for six years.[116]

In 2007, it was announced that del Toro would produce Born, a film using a combination of live action and stop-motion and elements from film such as The Sixth Sense, The Wicker Man, Rosemary's Baby, and Straw Dogs. Alongside del Toro, Lawrence Gordon and Lloyd Levin were listed as producers, with Clive Barker executive producing. Jennifer Connelly and Paul Bettany were set to star as husband and pregnant wife Joe and Vanessa, whose lives are shattered when they settle in an idyllic English town where the locals are almost too friendly, to raise their unborn child and for Joe to build his claymation workshop, when his claymation cartoons start to come to life and reenact his nightmares about a young girl's murder. The Chiodo Brothers, known for Killer Klowns from Outer Space, were set to create the animation.[117][118]

In 2007, New Line Cinema bought the rights to produce an English-language remake of The Orphanage with del Toro as producer.[119][120] On remakes, the original's director J. A. Bayona noted that "The Americans have all the money in the world but can't do anything, while we can do whatever we want but don't have the money" and "The American industry doesn't take chances, that's why they make remakes of movies that were already big hits".[121] On August 4, 2009, Larry Fessenden was announced as the director of the American remake.[122] Fessenden later announced that he would not be involved with directing the remake, stating "Working on the script with Guillermo was a very exciting experience, but then I got into a casting miasma and that's where the thing is; I think they're gonna do it another way, actually. So I think I'm out of it. Hopefully they'll still use my script, but I'm not sure I'm directing it anymore".[123] In January 2010, Mark Pellington replaced Larry Fessenden as director of the project.[124] On August 5, 2011, del Toro stated that the remake would reflect his original vision for the film, and that it had been planned even when the first version was in production. "Even when we produced the Spanish movie, I had intended to remake it because we had a very different screenplay that, because of money and time, got turned into the movie you saw – which is great, but there was this other structure for the original script that I wanted to try. So even before we shot the first film it was an economic decision, a pre-existing creative decision, to change it." Del Toro also praised the new film's director. "We have Mark Pellington attached as director – I'm a big fan of his The Mothman Prophecies and his video work – and we are out to actors, so we're hoping to get things going soon."[125] On August 30, 2011, it was reported that American actress Amy Adams was in talks to star as Laura, the main character, who was played by Belén Rueda in the original film. It was also stated that the current incarnation of the remake screenplay had been written by Larry Fessenden and Sergio G. Sánchez, the sole writer of the original film.[126]

In 2007, a film based on Death: The High Cost of Living, to be called Death and Me, was under production at New Line Cinema. Neil Gaiman wrote the screenplay, and would also direct, with del Toro as executive producer. Gaiman spent several days on the set of del Toro's Hellboy II: The Golden Army to get pointers on how to direct.[127] On October 14, 2010 it was reported in an interview with Gaiman that as of June or July, DC and Warner Bros. had closed down work on the film.[128]

In 2008, del Toro revealed that he was set to produce, alongside Mark Johnston, J. A. Bayona's film adaptation of Hater by David Moody for Universal.[129][130]

In 2010, Hellboy screenwriter Peter Briggs was asked by Universal to script a spin-off centring on Prince Nuada, and provisionally agreed that Briggs could direct the film in New Zealand. Briggs began work on an outline with co-writer Aaron Mason. Titled Hellboy: Silverlance, the script was a B.P.R.D. story featuring Abe Sapien as the main character with Hellboy in a supporting role. Moving into the new B.P.R.D. headquarters in Colorado, Abe is troubled by his psychic connection with Princess Nuala, and begins researching the elves' history. The film would have shown Nuada's adventures throughout history, including his rivalry with a fairy courtier who orchestrates Nuada's exile in hopes of marrying Nuala and seizing control of the fairy kingdom; Nuada first meeting Mister Wink by saving him from a troupe of soldiers during the Spanish Inquisition; and Nuada in Nazi Germany, engineering a pact to keep various supernatural entities safe during World War II (with Nuada and Kroenen fighting in a "friendly" match for Project Ragnarok men). Doug Jones would have played both Abe and the Angel of Death, who strikes a bargain with Nuada. Rupert Evans's Agent Myers would also have returned. The story climaxed at the new B.P.R.D. headquarters, with the return of Rasputin's summoning gauntlet. Universal wanted to proceed with the project, but it emerged that del Toro's Hellboy 3 was still a possibility, so Silverlance was shelved.[131] In 2015, Briggs received another call from Universal, saying that the third Hellboy film had been cancelled and asking him and Mason to return for a reworked Silverlance, with producers del Toro and Lawrence Gordon involved. The caveat was that Hellboy could not appear, but the writers managed to get the character a cameo appearance at the climax. If successful, the film would have launched a From the Files of the B.P.R.D. spin-off series.[131] In May 2017, Briggs affirmed that, with the announcement of the Hellboy reboot, the Silverlance project was dead.[131]

In October 2010, it was announced that DreamWorks Animation was developing an animated feature film based on the short film Alma. Short's director Rodrigo Blaas was set to direct the feature, with del Toro executive producing it.[132] In November 2011, it was reported that the studio hired Megan Holley, a writer of Sunshine Cleaning, to write the script.[133] Del Toro, who was also helping with the story and the design work, said in June 2012 that the film was in visual development.[134] However, the project was likely abandoned due to del Toro's commitment to other projects.

In December 2018, it was reported that del Toro would produce a remake of the 2017 Argentinian horror film Terrified for Fox Searchlight.[135] Demián Rugna, who wrote and directed the original film, was going to return to direct the remake, with screenplay by Sacha Gervasi.

Del Toro was going to produce Peter Bogdanovich's final project before his death; a biopic at Netflix about the brothers Gershwin titled Our Love Is Here to Stay.[136][137] In September 2022, Bogdanovich's widow confirmed that the film was still being developed but under a new director.[137]