Walken has taken on the role of the well-known British rocker for the autobiographic film about Motley Crue, The Dirt.
The idea for the movie was taken from the book, "The Dirt: Confessions of the World’s Most Notorious Rock Band."
Osbourne, who toured with Motley Crue, used LSD every day. The singer also snorted a line of ants, believing that they were cocaine.
In addition to Walken, Val Kilmer will star in the project as Van Halen front man David Lee Roth. Unknown actors will play the roles of the Motley Crue members, Vince Neil, Nikki Sixx, Mick Mars and Tommy Lee.