"Gay Sex" Hits San Francisco and NYC Theaters in November by Ellen Keohane A scene from Joseph Lovett's "Gay Sex in the 70s," which will open in New York and San Francisco in November. Image courtesy of the filmmaker. Joseph Lovett's documentary "Gay Sex in the 70s" has secured distribution in theaters, on home video/DVD and cable television, Lovett announced yesterday. The film will be self-distributed by the director/producer's own Lovett Productions with support from Frameline, the film's educational partner, while Wolfe Video has secured home video/DVD rights for the film. …