Walken plays Ozzy

Christopher Walken will make a cameo role as Ozzy Osbourne in a new movie based on Motley Crue's 2001 autobiography The Dirt, Vince Neil has revealed.

The book, The Dirt: Confessions Of The World's Most Notorious Rock Band, details the band's wild and freaky behavior. Osbourne toured with the band and appears in the book snorting a line of live ants and taking acid every day for a year. Ants and acid..why..WHY? A tripping Fear Factor

Val Kilmer will play David Lee Roth in the film - but band members Neil, Nikki Sixx, Mick 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."