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.

Plot

In 1947, Trinity College students Symonds (a theologian) and Alex (a scientist) visit the elderly Aleister Crowley. Crowley discusses the possibility of resurrecting from the dead with the help of sex magic rituals. The students deliver a letter, from which Crowley learns that one of his students gave away the secret of the "Moon Child" ritual to a science fiction writer. Finding no money in the letter, Crowley curses those who "steal his time", spits blood at Alex and dies. Symonds takes his watch.