The Belko Experiment

Mike Milch, an employee of Belko Industries, while driving to work is stopped by street vendors selling "lucky" handmade dolls. Barry Norris, also of Belko Industries, arrives at the office building in Bogotá, Colombia, to find unfamiliar security guards turning away the local Colombian staff at the gate. New employee Dany Wilkins reports for her first day on the job and is told that a tracking device is implanted in the base of every Belko employee's skull in case something happens to them.

Evan Smith, Belko's head security guard, does not know who the new security guards are. Once all the employees show up, a voice on the intercom instructs them to kill two of their co-workers, or else there will be consequences. Several staff attempt to flee the building, but steel shutters seal off the walls and doors, locking them all in. They ignore the announcement at first, believing it to be a sick prank, but after the set time ends and the two have not been killed, four employees die when explosives hidden in their trackers detonate and blow their heads apart. Mike attempts to remove his tracker with a box cutter, but gives up when the voice threatens to detonate his tracker explosive unless he stops.

The group is told that unless thirty of them are dead within two hours, sixty will be killed. They split into two factions, one led by Mike, who believes that there should be no killing, and one led by Barry, who intends to follow the directions in order to save himself. Barry and his group, consisting of executive Wendell, as well as employees Terry, Antonio, and Bradley attempt to burn off the lock of the armory in order to gain access to its weapons. Mike and his group, including his girlfriend, Leandra Florez, Evan and employees Keith, Leota, Peggy, Vince and Roberto, try to hang banners from the roof as a call for help, but soldiers outside shoot at them. Barry, Wendell, and Terry ambush the group in the stairway, kill Evan and take his keys to the armory.

With his group now armed, Barry and Wendell select thirty people, including Mike and Peggy, forcing them to kneel in a line. Barry begins executing them with a gunshot to the back of the head. Dany, who has been hiding in the basement, sees what is happening and shuts off the building's lights before Mike and several others can be killed. The employees immediately run for cover as Barry and his group start firing, killing several more people. However, Bradley and Antonio are ganged upon and killed by the employees. During this, Dany goes into the elevator shaft with Roberto.

Barry and Wendell hunt down the fleeing employees as the voice informs them that only twenty-nine have been killed. Then the two-hour time limit runs out. The voice states that 31 more people will die, including Terry, Leota, Peggy, and Keith, leaving only 16 survivors. They are then informed by the voice that, as a final task, the employee who has killed the most people within an hour will be spared. Barry finds Dany and Roberto in the elevator shaft. Dany escapes while Roberto is crushed and killed in the elevator shaft. Leandra finds two employees, Marty and Chet, collecting the un-exploded trackers from the heads of people who have died by other methods. They tell her that they are planning to use them to blow up the wall. However, they are killed by Wendell. Leandra kills Wendell, leaving the final six survivors: Vince, Mike, Barry, Dany, Leandra, and cafeteria lady Liezle, who is killed shortly afterward. Barry shoots Vince and Dany, killing them, and also shoots Leandra. With her dying breath, she proclaims her love to Mike.

In a rage, Mike has a brutal fight with Barry, in which Barry gets the better of him at first, however, Mike fends Barry off using a tape dispenser, which ends in Mike bludgeoning Barry to death. The building is then unsealed, as he is the last survivor, and the soldiers escort him to the hangar next door. There, he meets the owner of the Voice, who says that they're part of an international organization studying human behavior. As he and his colleagues begin to question Mike about his emotional and mental state, Mike notices a panel of switches that correspond to the eighty employees. Having planted the trackers that Marty collected on the soldiers and the Voice, he flips every remaining active switch except his own. The trackers explode, killing the soldiers and wounding the Voice, before Mike grabs a gun and kills the remaining scientists. The Voice attempts to reason with Mike and appeal to his moral beliefs, but Mike kills him. He then leaves the warehouse in a state of shock.

It becomes apparent that Mike is one of many sole survivors from similar experiments, being watched by another group through security cameras. A new voice states, "End stage one, commence stage two."

James Gunn began writing the film around 2007, after waking up from a dream of an office building being enclosed in metal walls and hearing a voice instruct employees to kill each other, alcohol or drugs may have been involved. The film was greenlit soon thereafter, and plans were made for it to be filmed in São Paulo, Brazil, with Gunn directing. However, Gunn turned down the opportunity, owing to getting a divorce around the same time.[15] Gunn later said, "I just wanted to be around my friends and family. I didn't want to go shoot this thing that was about people who loved and cared about each other being forced into killing each other. It just didn't seem to be the way I wanted to spend the next few months of my life. So I backed out of it."[15] Gunn moved on to other projects, including the 2010 film Super, and had "kind of forgotten about it" until he received a call from Jon Glickman at MGM asking if he would still be interested in making it. Gunn did not have time to direct the film himself, due to his work on Guardians of the Galaxy, but he agreed to produce it, provided that he was given full creative control.[15]

Much of the cast was announced in May 2015, including John Gallagher Jr.,[5] Tony Goldwyn,[6] and Melonie Diaz.[9] More joined the cast in June, including David Del Rio, Stephen Blackehart, Josh Brener, and Rusty Schwimmer.[10] Principal photography on the film began on June 1, 2015, in Bogotá, Colombia.[16][17] and concluded on July 12, 2015.[18]

The film had its world premiere at the Toronto International Film Festival on September 10, 2016.[19] Shortly after, Blumhouse Tilt and Orion Pictures acquired U.S distribution rights to the film, and set it for a March 17, 2017, release.[20][21] It was released to UK theaters on April 15, 2017.[22]

The film was promoted through a series of four claymation shorts directed by Lee Hardcastle which, according to website io9 (where they debuted), "features exaggerated versions of The Belko Experiment’s characters, and offers a taste of the level of violence and humor you’ll see when the actual movie opens".[23] The movie was also promoted with a video game, "'Belko Experiment’ Escape Room in VR" released for virtual reality platforms.[24]

• Mean Guns, a 1997 film with a similar plot device
• The Tournament, a 2009 film with a similar plot device
• Mayhem, a 2017 film with a similar premise
• Office Uprising, a 2018 film with a similar premise

• The Belko Experiment at IMDb
• The Belko Experiment at Metacritic
• The Belko Experiment at Rotten Tomatoes