This is Spinal Tap (1984)

82 min - Comedy, Music
Spinal Tap, the world's loudest band, is chronicled by hack documentarian Marty DeBergi on what proves to be a fateful tour.
Director: Rob Reiner
Writers: Christopher Guest, Michael McKean
Stars: Rob Reiner, Michael McKean, Christopher Guest, Kimberly Stringer
Filmillion already knows film "This is Spinal Tap"
and it guessed it 40 times.
Celebrity Fact
Actor Mel Blanc who is the voice of famous Bugs Bunny hates carrots. But because Bugs Bunny ate them a lot, actor also did it when he voiced his character.
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