I don't think these were mentioned:
Gun Hill Rd. http://www.imdb.com/title/tt1525838/ Gun Hill Rd is a trans movie from the Bronx. I lived near there.
Transfixed- http://www.imdb.com/title/tt0284573/ Transfixed is a gritty film in typical French/Belgium style. Drugs, Murder, you know the rest.
Wigstock- Although a documentary, it's still a trans movie. I knew some people in that film.
I guess also almost any Andy Warhol movie staring Candy Darling or Jackie Curtis.