Foo Fighters’ Dave Grohl, Slash and Metallica are set to appear in a new documentary movie about Motorhead’s Lemmy.

The film, entitled Lemmy, follows the singer across the world over a three-year period.

Shot by Greg Olliver and Wes Orshoski, the film also includes extensive interviews with the star.

“When it comes to rock n roll you need something to believe in. Integrity means everything,” Grohl said.

“To me, more than any other rock musician, Lemmy is the baddest motherf*cker in the world.”

Lemmy will receive its UK premiere at the London Film Festival on October 23, before being given a run in selected cinemas throughout the UK from December 3.

It is due to be released on DVD on January 2011.

(by Jason Gregory)