London-based Focus Films has started production on supernatural horror film Chemical Wedding. Julian Doyle, who edited Terry Gilliam's Brazil and Time Bandits, will direct.

The story is based on an original screenplay by Bruce Dickinson, frontman of Iron Maiden. Dickinson will provide the soundtrack to the film.

Warner Music has already taken on all UK and Ireland rights and plans a theatrical release in 2008. Edward Noeltner's Cinema Management Group is handling world sales.

Simon Callow will star as a modern Cambridge professor who becomes a re-incarnation of Aleister Crowley, the infamous occult scholar.

Focus Films' David Pupkewitz and Malcolm Kohll are producing with Ben Tilmlett and Justin Peyton of Bill and Ben Productions and Duellist Film Production in association with MotionFX and E-Motion. Executive producers are Andy Taylor, Paul Astrom-Andrews and Peter Dale.

Focus' previous projects include 51st State starring Samuel L Jackson. The company is also in pre-product noon Marleen Gorris' Heaven And Earth.