James Watkins Director, Writer Finn Atkins Paige Actor Michael Fassbender Steve Actor James Gandhi Adam Actor Tom Gill Ricky Actor Jack O'Connell Brett Actor Kelly Reilly Jenny Actor Thomas Turgoose Cooper Actor Bronson Webb Reece Actor Christian Colson Producer Richard Holmes Producer Conor McCaughan Executive Producer David Julyan Original Music Christopher Ross Cinematographer Jon Harris Film Editing Julie Harkin Casting Simon Bowles Production Design Lisa Chugg Set Decoration Keith Madden Costume Design