Based on the book by Vito Russo, this 1995 Documentary explores the history of Hollywood's portrayal of gay characters through the ages.
This film contains/discusses examples of the following tropes:
Adaptation Distillation: The documentary is a worthy adaptation of the Vito Russo book, managing to include and expand on many of the ideas from the book. The film also benefits from the new medium, being able to show scenes that Russo could only describe.
Camp Gay: And his less explicitly gay brother, The Sissy. Discussed in depth, with several talking heads having different opinions of the worth of such characters. (Harvey Fierstein likes them: "Visibility at all costs!")