Dave Grohl, Ozzy and Slash set to appear in forthcoming Lemmy movie

Foo Fighters' frontman Dave Grohl, Ozzy Osbourne and Slash are set to appear in a new documentary about Motorhead frontman Lemmy Kilmister.

Simply titled Lemmy, filmmakers Greg Olliver and Wes Orshoski documented the singer's life over a three year period as well as interviewing other rock legends about the man himself.

"Lemmy is the baddest motherfucker in the world," says Dave Grohl who collaborated with the singer on his 2004 side-project Probot.

Lemmy will premiere at the London Film Festival on October 23, before being screened at select cinemas up and down the UK until early December. It will then be released on DVD on January 24.