NY77: The Coolest Year in Hell (2007)

Part of VH1's Rock Docs series. Gives a really good picture of a specific place, time, and culture, outlining '77 in terms of punk, disco, and hip-hop and showing how they arose out of the general metropolitan decay and despair of New York City in the '70s. The doc suffers a bit from its focus by the end, as there's no real dramatic event to tie the whole thing together. It's like watching a fun sleazy yearbook.

Geraldo Rivera apparently did it a lot at Studio 54.