Chemical Wedding (released in the U.S. as Crowley) is a British supernatural horror/science fiction film produced by Bill&Ben Productions in conjunction with the London-based Focus Films. It is directed by Julian Doyle. The story is based on an original screenplay by Bruce Dickinson, frontman of heavy metal band Iron Maiden. Dickinson released a solo album entitled The Chemical Wedding in 1998, which, despite sharing the title and title track from the film's soundtrack, is otherwise unrelated.