The documentary American Swing, about the hetero sex club Plato’s Retreat, opens at Quad Cinema today, but our Tim Murphy caught an early screening last week with “free-thinking adult couples” of yesteryear. “I was kind of scared. I wasn’t sure I could handle the nudity,” said a woman who visited the club once and promptly shed her clothes. Watch the video (the commentary is a little NSFW) to see old ladies talk about orgies and find out where today’s swing clubs are located.