Green Room director Jeremy Saulnier has credited Sir Patrick Stewart with saving the film from "shutting down".
Saulnier's thriller stars Anton Yelchin and Callum Turner as members of a band targeted by neo-Nazi skinheads after witnessing a murder with Stewart playing the head of the gang - and Saulnier has now revealed the movie was almost shelved before the Star Trek actor "nosedived" into the project and got them the green light.