Harry Hay was one of the founding fathers of the gay rights movement, and for more than 50 years was synonymous with the term "gay pride." Director Eric Slade's documentary about Hay looks at both his life and the movement he did so much to define. In 1948, Hay founded the Mattachine Society in Los Angeles; the goal of the organization was to establish a "Golden Brotherhood," one that sought to redefine homosexuality as a normal, healthy way of life. The problem, Hay famously maintained, was not...