The trailer for the upcoming horror film 'The Belko Experiment' has been released. Written by superhero film 'Guardians of the Galaxy' director, James Gunn, it features actors John Gallagher and Adria Arjona. The film has been co-produced by Peter Safran, who has previously produced 'The Conjuring' and 'Annabelle'. 'The Belko Experiment' will release on March 17, 2017 in USA.