A Hard Day's Night (1964)

A Hard Day's Night (1964) 

The Beatles--the world's most famous rock and roll band--travel from their home town of Liverpool to London to perform in a television broadcast. Along the way they must rescue Paul's unconventional grandfather from various misadventures and drummer Ringo goes missing just before the crucial concert. (IMDB Jim Beaver )

Currently rated a 7.7 on IMDB. I can't help but think that if it was The Critters rather than the Beatles in the movie that it would be a 3.5.

Baby Snakes (1979)

 Baby Snakes (1979) 

 Rock artist Frank Zappa hosts a concert in New York City. This movie contains tons of on-stage footage, off-stage footage, and animation.

Director: Frank Zappa

Writer: Frank Zappa 

Eyes of Crystal (2004)

Eyes of Crystal (2004)

aka 

Occhi di cristallo

While hunting a cultured, intelligent and vicious psychopath, Inspector Amaldi comes face to face with the physical and moral decay of his city as well as the ghosts of his own past. (MDB)