Sundance: Brydie O’Connor’s Barbara Hammer documentary is a veritable goldmine of queer cinema history, and a film worthy of its peerless subject. It’s Sundance 1993, at the premiere of “ Nitrate Kisses. ” Early camcorder footage has that fuzzy desaturation where every indoor space is tinted with a warm beige. The lens is close up on a man’s face, both operator and subject surrounded by winter jackets and hardwood paneling. He deadpans to camera:  “I see more baby dykes running around than I