The term rockumentary is a neologism denoting a television or movie documentary about rock and roll or its musicians. It was coined by Rob Reiner in the mockumentary film This Is Spinal Tap.

Examples include Monterey Pop (Monterey Festival), Woodstock (Woodstock festival), The Last Waltz (final concert by The Band), Gimme Shelter (The Rolling Stones at Altamont), Stop Making Sense (Talking Heads) and the parody This Is Spinal Tap.

Anyone care to chip in with more? This article could do with a good de-stubbing