Russ Meyer - Mondo Topless (1h00m)(1966) avi

Russ Meyer's classic 1966 sexploitation flick that pushed the boundaries of acceptable sex limits ion American culture. Naturally, all of this took place in that bastion of un-American sexuality, "San Francisco."

http://www.imdb.com/title/tt0060712/?ref_=nv_sr_1

Today it's mostly hilarious but in it you can identify the elements of modern porn, and from this point in the '60s you can begin to track the breakdown of the blue-nose, church disapproval element in favor of more openness and sexuality. This set censorship on the run.