Chemical Wedding (released in the U.S. as Crowley) is a 2008 British science-fantasy horror film produced by Bill and 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, front man 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.