Christopher Walken is to play Ozzy Osbourne in a new Hollywood movie. The Oscar winner will make a cameo role as the shock rocker in a new movie based on Motley Crue's 2001 autobiography The Dirt, Crue frontman Vince Neil has revealed. The book, fully titled The Dirt: Confessions Of The World's Most Notorious Rock Band, details the band's wild behavior. Osbourne toured with the band and appears in the book snorting a line of live ants and taking Lsd every day for a year. Val Kilmer is also lined up to play David Lee Roth in the film - but band members Neil, Nikki Sixx, **** Mars and Tommy Lee will be played by unknown actors. Neil says, "How funny is that going to be. We're doing big, giant cameos with those people."