As mentioned in the DVD commentary, various people played different parts of Darren Mullet when Calvin Dean was (I) in make-up or shooting a different scene. This was mainly for scenes just showing his hands.
During a scene with Mary Nighy and Ruby Bentall, a DVD playing The Duchess (2008) with Keira Knightley can be seen. Stars of Tormented Calvin Dean and Georgia King also appear in this movie.
During the credits the song 'Lesbian Roadkill' is credited as being performed by Tantric Dwarf and being licensed by Crying While Wanking. This is in reference to the song being played by the character Nasser in the film. The song was in fact written especially for the film by Christian and Joe Henson.
During the sex scene between Alex Pettyfer and April Pearson, April Pearson is not wearing a shirt. However, as Alex Pettyfer is dragged out of the car, she is suddenly wearing her shirt again.