The Belko Experiment is a 2016 American horror-thriller film directed by Greg McLean and written by James Gunn. The film stars John Gallagher Jr., Tony Goldwyn, Adria Arjona, John C. McGinley and Melonie Diaz. Filming began on June 1, 2015, in Bogotá, Colombia. The film premiered at the 2016 Toronto International Film Festival on September 10, 2016 and was released in the United States on March 17, 2017, by Blumhouse Tilt and Orion Pictures. The film received mixed reviews from critics and has grossed $11 million worldwide, against its $5 million budget.