This Is Spinal Tap A Rockumentary by Martin Di Bergi (1983)

Cult mockumentary about a ridiculous rock group.
A fictional British rock group attempts to mount a comeback by embarking on a US tour, but as time moves on they must confront the fact that they just aren’t as popular as they used to be. This hilarious, groundbreaking, largely improvised mockumentary is much imitated but never bettered.
1983 USA
Directed by
Rob Reiner
Produced by
Karen Murphy
Written by
Christopher Guest, Michael McKean, Harry Shearer, Rob Reiner
Featuring
Christopher Guest, Michael McKean, Harry Shearer
Running time
82 minutes