Carl McCoy in Hardware

Sting in Lock Stock and Two Smoking Barrels and a few other things

Ice Cube in Three Kings and other things.

Mark E. Smith in 24 Hour Party People
Mani whateverhisnameis in 24 Hour Party People
Rowetta whateverhernameis in 24 Hour Party People
Paul Ryder in 24 Hour Party People

Henry Rollins in Heat

Good one! I forgot about that!

GOOOOOOD call! Dune!

johnny cash in a Colombo episode.

Nice. I think he also played Baron Frankenstein once. I don't think the film was very good, but Sting looked pretty cool in it.

I'm thinking Yoko Ono makes a cameo in a few films, but I can't think of any. Anyone?

Tom Waits in Down By Law

laurie anderson in a movie that I can't remember

yo yo yo yo yo

NIco in LA DOLCE VITA!!!!!!!!!!1

(but she wasn't yet a musician then-- she was a model-- i think? hmmm..yea dolce vita is from 1960)

Clint Mansell in Pi.

and The Name of the Rose amongst others.

Björk - Dancer in the Dark

Really? I haven't seen that, due to a severe Sean Connery aversion.

He plays in Renfield in Dracula.

Flea was also in Fear & Loathing in Las Vegas (hippie who licks powdered LSD off of HST' arm in bathroom)
and in Back to the Future III (street racers)
gene simmons was in that movie about the murdere who uses robots or some shit to murder
mick jagger has been in tons of movies
keith richards will be a cameo in the new pirates of caribbean as Captain Sparrow's dad.
Blues Brothers had aretha franklin, james brown, Ray Charles, Cab Calloway, chaka kahn, and joe walsh as the prisoner at the end of the miovie who jumps up on the table while the blues bros are playing

hmmm, wasn't that Ron Pearlman in "the name of the rose"?

david bowie - the prestige (among others)

tom waits - Domino

Sorry I'm wrong. It's Ron Perlman.

Mick Jagger - Performance

Keith Richards in Pirates of the Carribean.

Oh, you're telling me that that was Johnny Depp?

Well, he'll be in the new "pirates", as the father of johnny's character.