Town Bloody Hall is a good documentary, a colorful snapshot of the left at a particular place and time (NYC intelligentsia in 1971, the middle of second-wave feminism). You do have to do the required reading first, though (Criterion should've bundled Mailer's book with the disc)
Read Norman Mailer's The Prisoner of Sex (his critique of Kate Millett's Sexual Politics) in preparation to watch the documentary Town Bloody Hall, and it's an axe-grinding, often insane book that should nonetheless not be out of print. (The Library of America will probably get around to it)
