Here’s an unheralded gem: 1970’s “Performance.”
Jack Nitzsche, Randy Newman, Merry Clayton, Ry Cooder, Buffy Sainte-Marie, Russ Titelman, Lowell George, Gene Parsons, Bobby West and Milt Holland.
In various incarnations, this “band” created a really cool, unique soundtrack for the film. It’s produced by Jack Nitzsche but he is also probably the primary creative force, with Randy Newman, Merry Clayton, and Ry Cooder in tow. Randy Newman plays on several tracks, sings a couple, and is even credited as the band’s “conductor.” You throw in Buffy Sainte-Marie getting in there, and then all these excellent players from The Byrds, Little Feat, and Captain Beefheart’s Magic Band, Bernard Krause using a Moog synthesizer prototype (it being 1970 they weren’t on the market yet) and some really interesting, unique music, this is an unheralded gem.
It even has The Last Poets with their 1970 classic, “Wake Up, N*****s”