I read this elsewhere, and thought I'd re-post it here...

The best movies about musicians.

The pianist (Wladyslaw Szpilman)

Immortal beloved (Beethoven)

Amadeus (Mozart)

Great balls of fire (Jerry Lee Lewis)

La Bamba (Ritchie Valens)

Arturo Sandoval story

The legend of 1900


Those are a few off the top... There are probably a lot more I have not seen worth a mention.