Last night we (finally) saw Todd Haynes' Superstar: The Karen Carpenter Story last night. After years of being snubbed by the clerks at Kim's Video when I'd ask for it, and half-hearted attempts to get a bootleg copy from someone or other, we just walked over to Anthology and there it was, showing as part of Illegal Art!.
(The first time I went to Kim's, a Suit workin' for the Mouse but livin' in Chinatown and yearning for street cred, I cannily asked if Bladerunner wasn't in the Ridley Scott section. The scornful reply: "Noo, the Douglas Trumbull section.")
Anyway, Superstar turned out to be both better and worse than I imagined. Definitely worthy of its reputation, it's a canny film; it's a little eerie how well the Barbie doll concept works. The bootleg copy they showed, though, sucked. If only there were a medium you could copy without generational degradation... [If you don't have connections to the video underground either, you can watch Superstar in even lower-res online.]
Other films screened with Superstar, all using unauthorized/illegal footage or music in some way. For my money, the best ones were not about appropriation per se; Michal Levy's Giant Steps, for example, is a fun, beautiful CG interpretation of John Coltrane's canonical (and surely impossible to clear) recording.