How to Train Your Dragon: The Hidden World

One year after becoming chieftain,[N 1] Hiccup, his Night Fury Toothless, and their fellow dragon-riders continue to rescue captured dragons to bring them to Berk; however, the island is becoming overpopulated with dragons. In response, Hiccup desires to find the "Hidden World", a safe haven for dragons once spoken of by his late father, Stoick. Meanwhile, a white female Fury dragon, held captive by warlords, is given to an infamous dragon hunter Grimmel the Grisly as bait for him to capture Toothless for the warlords' use as an alpha.

Toothless discovers the white Fury in the woods, and the two become enchanted with each other until the white Fury, sensing Hiccup's and Astrid's nearby presence, flees. Astrid then dubs the white Fury a "Light Fury". Hiccup and Tuffnut later discover Grimmel's dragon traps in the area. Grimmel visits Hiccup that night, demanding he hand over Toothless while revealing he single-handedly killed every Night Fury species to near extinction, but Hiccup has prepared an ambush for him. Grimmel escapes while his Deathgripper dragons burn down Hiccup's house and Berk. Hiccup then rallies the citizens and dragons to leave Berk on a quest to find the Hidden World and safety from dragon hunters.

Mid-journey, the Berkians discover an island on which they initially plan to rest, but soon begin to settle there, dubbing it "New Berk". Seeing Toothless' inability to fly solo hindering his growing relationship with the Light Fury, Hiccup rebuilds an automatic tailfin for him.[N 2] Upon receiving it, Toothless flies off, meeting up with the Light Fury and flying with her to an unknown land. On a scouting patrol, Valka notices Grimmel's approaching army and reports back to Hiccup. Hiccup and the dragon riders head to capture Grimmel but fall into his trap and barely escape, but Ruffnut is captured, however, she irritates Grimmel until he lets her go.

Hiccup, Astrid, and her dragon Stormfly search for Toothless, finds the Hidden World, and see Toothless and the Light Fury leading the dragons as a happily mated couple. When the two humans are soon discovered, the inhabitant dragons attack them, but Toothless rescues them and returns them to the Berkians, with Hiccup realizing that humans would be intruders and unsafe in the Hidden World. Ruffnut returns, but unbeknownst to her, Grimmel had secretly followed her to New Berk. Grimmel appears and captures Toothless and the Light Fury, who had followed them to New Berk. Toothless' alpha status allows Grimmel to capture the rest of Berk's dragons by holding the Light Fury hostage.

With Astrid's encouragement, Hiccup sets out with the dragon riders to stop Grimmel and his army. Gliding on wingsuits, they catch Grimmel's army off-guard, igniting a battle, and freeing the dragons while killing Grimmel's men. With help from Stormfly, Hiccup frees Toothless while Grimmel drugs the Light Fury into obeying him. Hiccup and Toothless give chase and defeat Grimmel's Deathgrippers, but Grimmel tranquilizes Toothless midair, causing the dragon to fall helplessly. Hiccup, realizing he cannot rescue Toothless alone, frees the Light Fury and implores her to save Toothless, unfastening his prosthetic leg and causing both him and Grimmel to fall. Grimmel drowns in the ocean, while the Light Fury arrives to save Hiccup.

Back on the island, Toothless and Hiccup fully realize that dragons will never be safe in the human world and humans will never be allowed in the Hidden World. Hiccup bids an emotional farewell to Toothless as the Berkians tearfully set their dragons free to live in the Hidden World, with the Light Fury leading the dragons away and Toothless following them. Three months later, Hiccup and Astrid marry and become the chieftains of New Berk.

10 years later, Toothless and the Light Fury have mated and given birth to three hybrid dragon fledglings, Night Lights. Hiccup, Astrid, and their two children[N 3] sail across the sea to visit them at the edge of the Hidden World. After introducing his son and daughter to his old friend, Hiccup and Astrid take their children flying on Toothless and Stormfly, accompanied by the Light Fury and their offspring. Hiccup vows that until humankind is ready to co-exist peacefully with one another, the dragons will stay hidden while the Berkians guard their secret.

• Jay Baruchel – Hiccup Horrendous Haddock III, the son of Stoick the Vast and Valka, the newly crowned Viking chief of Berk, the one who initially trained the dragons, and Astrid's husband.[6]
  • A.J. Kane – younger Hiccup
• America Ferrera – Astrid Hofferson, an excellent fighter and Hiccup's wife[6]
• F. Murray Abraham – Grimmel the Grisly, an infamous dragon hunter who is responsible for the near-extinction of the Night Furies[7]
• Cate Blanchett – Valka Haddock, a dragon rescuer and Hiccup's mother, now living on Berk after twenty years of isolation[6]
• Gerard Butler – Stoick the Vast, the late father of Hiccup and Berk's previous chieftain, as seen in flashbacks[8]
• Craig Ferguson – Gobber the Belch, a seasoned warrior, blacksmith, and dragon dentist[9]
• Jonah Hill – Snotlout Jorgenson, a brash, overconfident, and fairly unintelligent but reliable friend of Hiccup[9]
• Christopher Mintz-Plasse – Fishlegs Ingerman, an enthusiastic friend of Hiccup knowledgeable in dragon lore, which he often relates in a role-playing game style[9]
• Kristen Wiig – Ruffnut Thorston, Tuffnut's fraternal twin who is friends with Hiccup[10][9][11]
• Justin Rupple – Tuffnut Thorston, Ruffnut's fraternal twin who is friends with Hiccup[10][9][11] He was originally voiced by T.J. Miller in the first two films and the TV series.
• Kit Harington – Eret, a former dragon hunter who used to work for Drago Bludvist, who has joined the dragon riders after the events of the second film.[7]
• Julia Emelin – Griselda the Grievous, an aggressive warlord who works with Grimmel
• Ólafur Darri Ólafsson – Ragnar the Rock, an incompetent warlord who works with Grimmel
• James Sie – Chaghatai Khan, a less aggressive and stubborn warlord who works with Grimmel
• David Tennant – Ivar the Witless, a dragon trapper who works for the Warlords
  • Tennant also voices Spitelout Jorgenson, the father of Snotlout.
• Robin Atkin Downes – Ack, a blond-bearded Viking
• Kieron Elliot – Hoark, a Viking with a knotted beard
• Ashley Jensen – Phlegma the Fierce, a female Viking who works as a botanist at the School of Dragons
• Gideon Emery – a trapper
• Randy Thom – vocal effects for Toothless and the Light Fury

In December 2010, DreamWorks Animation CEO Jeffrey Katzenberg announced that there would also be a third film in the series: "How To Train Your Dragon is at least three: maybe more, but we know there are at least three chapters to that story."[12] Dean DeBlois, the writer and director of the second and the third film, stated that How to Train Your Dragon 2 was being intentionally designed as the second act of the trilogy: "There are certain characters and situations that come into play in the second film that will become much more crucial to the story by the third."[13] DeBlois said in an interview that the third part would be released in 2016.[14] Although the series has taken a different path of telling a story of Hiccup and Vikings, author Cressida Cowell revealed that the trilogy and the book series will have similar endings (with "an explanation as to why dragons are no more").[15]

The film was produced by Bonnie Arnold[16] and Brad Lewis. DeBlois and Chris Sanders were the executive producers; Sanders was an executive producer of the second film and co-director of the first.[16] Jay Baruchel, Gerard Butler, Craig Ferguson, America Ferrera, Jonah Hill, Christopher Mintz-Plasse and Kristen Wiig returned in the third film,[16] with Justin Rupple replacing T.J. Miller as Tuffnut.[10] DeBlois revealed that Miller did originally return to voice Tuffnut, but DreamWorks recast him after the actor's sexual assault allegations and arrest for calling in a fake bomb threat.[17] Cate Blanchett also reprised her role as Valka from the second film.[6] On November 14, 2017, it was announced that Kit Harington would reprise his role as Eret and F. Murray Abraham had joined the cast.[7] During the earlier stages of production, DeBlois stated that Djimon Hounsou would also return as Drago Bludvist.[18] It was even planned to have Drago redeemed by the film's end, but halfway through development, DreamWorks co-founder Steven Spielberg convinced DeBlois that the story of Drago's redemption required more screen time that they could not provide, causing his inclusion to be scrapped.[19] On April 17, 2018, DreamWorks Animation announced that the sequel's title would be How to Train Your Dragon: The Hidden World.[20][21] The animation challenges of the production required DreamWorks Animation to update and invent new software to handle complex tasks, such as lighting the Light Fury dragon.[22]

In September 2012, 20th Century Fox, DreamWorks Animation's then-distributor partner, and the studio itself announced the film was originally going to be released on June 17, 2016.[16][26][27] In September 2014, the film's release date was pushed back a year from its original release date of June 17, 2016 to June 9, 2017.[6] DeBlois explained the release date shifts as such: "It's just that these movies take three years. I think it was a little ambitious to say 2016... As is normally the case, they kind of throw darts out into the future and wherever they land they call that a release date until we start talking about it in practical terms, and then it's like, 'Uh yeah that's not enough time'. So knowing that they take three years from this moment, from outlining and writing the screenplay through to the final lighting of it, it's just a process of building models and doing tests and animating, storyboarding, the whole thing just adds up to about three years."[28]

In January 2015, the release date was pushed back a year from June 9, 2017 to June 29, 2018 following DreamWorks Animation's corporate restructuring and lay-offs meant to maximize the company's "creative talent and resources, reduce costs, and drive profitability."[29][30] On June 18, 2016, the release date was moved up from June 29, 2018 to May 18, 2018, taking the release date of the Warner Animation Group's The Lego Movie 2: The Second Part.[31] On December 5, 2016, the US release date was pushed back from May 18, 2018 to March 1, 2019.[32] The release date was moved up for a final time from March 1, 2019 to February 22, 2019, taking the slot of The Turning, a live-action DreamWorks film which in turn was pushed back to January 24, 2020.[33][34]

A live-action film unrelated to the animated trilogy was announced to be in development. It will be produced by Marc Platt Productions and distributed by Universal Pictures, with DeBlois set to return to write and direct. It is scheduled for release on March 14, 2025.[86][87]

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• Official website
• How to Train Your Dragon: The Hidden World at IMDb