My first gay film was THE KILLING OF SISTER GEORGE.
I read THE FRONT RUNNER when it first came out, so to speak.
I saw Derek Jarman's SEBASTIANE when I was in college. Likewise, the Pasolini catalogue, though they are only gay because they came from a gay film maker.
Ditto the John Waters movies, saw them when they were first released.
I know I saw TEA AND SYMPATHY and THE CHILDREN'S HOUR on television, probably sometime after 1968. . .
In college (1974-78) I also saw Charles Ludlam and The Ridiculous Theatre Company in CAMILLE and HEDDA GABLER.
Also saw Julien Beck, Judith Malina and The Living Theater Company while I was in college - lots of nudity, male and female, and some gay action, iirc.