Severance (2006) trivia:
Casting lasted four months because director, Christopher Smith, wanted the perfect people for the roles.
Actor Toby Stephens wanted to do the movie because he'd never done a horror film before liked the comedy/horror mix of the project.
Laura Harris had a such fun on the set with her fellow cast member, she found it hard to reach the emotional depths needed for her character when it was time for her to shoot. To get herself out of her good mood, she began listening to dark and depressing music to help her prepare for her scenes.