'The Belko Experiment' trivia and fun facts

Casting

John Gallagher Jr. auditioned for a role in a film before directed by James Gunn. He wasn't right for the part. But Gunn thought he was the best actor he had seen and vowed to work with Gallagher again.

Coincidence

Its the fourth time that James Gunn and Michael Rooker work toguether. The other times were in 'Slither' (2006), 'Super' (2010) and in 9Guardians of the Galaxy' (2014).

Seemed

This film looks like 'Battle Royale' (2000) becouse it's the same story. But also both films use the 'Requiem' by Verdi.

Director

James Gunn was chosen for directed this movie, but he finally denied. But he was happy for Greg McLaren.