Christopher Walken will play rocker Ozzy Osbourne in a new biopic of metal group Motley Crue.

IMDB states that the band's singer Vince Neil revealed Walken's cameo role when speaking about the upcoming movie - based on Motley Crue's autobiographical book The Dirt: Confessions Of The World's Most Notorious Rock Band.

Val Kilmer is also reportedly preparing to star in the film, playing David Lee Roth. Neil also suggests that the members of Motley Crue will appear in the film: "How funny is that going to be? We're doing big, giant cameos with those people."