This is Spinal Tap

Rob Reiner, 1984

Certainly one of the best comedies - if not the best - ever made. Such a clever and sharp-witted satire of hard rock ("hair metal") and the legends around the bands that a non-expecting viewer may well take most of this fake documentary for real. Every scene is a classic. Superb acting; there's not a single moment in which it would actually look like acting, it's so real... although one must note that the characters are quite average Joes with no substantial acting challenge. But they perform the jokes in such a sincere and realistic manner, and the jokes don't play on typical comedy material but every joke is on Spinal Tap, a "legendary" band formed out of the sad union of vanity and infantility. The film takes multiple viewings to get all the jokes because they are layered in in a very subtle manner. To write this kind of material one must really be in on and love the world of rock. Special points go to 1. the fact that the actors both wrote and performed the various Spinal Tap songs in the film, and 2. the actor playing the bassist, Harry Shearer, being the voice behind a multitude of The Simpsons characters.