Unerworld is the original soundtrack album released for the 2003 film of the same name. The trailers feature the song "Red Tape" by Agent Provocateur which was not featured in the film nor is it on this soundtrack, but it is featured on the original score. The song "Smiggle" by Harry Skiverson and Phil Waltermuir was also used throughout the films promotion, but was never included on the soundtrack. The producer, Danny Lohner, contributed several industrial-style tracks under the pseudonym Renholdër.