Here is the list of the biggest offenders, excluding historical artifacts like Cruising and The Boys in the Band, and movies where the gay guy dies (which I never see in the first place).
1. Get Real (1998). The only gay guy in the world (Ben Silverstone), who plasters his room with pictures of hunky footballers but still worries that his parents will "find out," falls for a local jock, who won't acknowledge his presence in public, continues to date girls, and beats him up to prove he is heterosexual. But there are no other options.
2. Sordid Lives (1999). In "modern" Texas, a drag queen named Brother Boy (Leslie Jordan) is in a mental hospital, undergoing de-homosexual therapy. Meanwhile, a gay man (Kirk Geiger) moves from Texas to Los Angeles, where he undergoes 300 years of therapy to accept "who he is," but is still terrified that his theater-crowd friends will "find out." Are you kidding me? (Southern Baptist Sissies is in the same vein).
Joshua Jackson, not even the most homophobic of the Jacksons) helps them blackmail his sex partner, a closeted footballer, who tries to turn hetero by throwing out his Judy Garland cds. Excuse me? Who researched this movie?
Gay Men Really Want Women
4. The Object of My Affection (1998). Straight woman (Jennifer Anniston) and gay man (Paul Rudd) fall in love and begin a relationship. Um. . .what exactly did they think the word "gay" meant?
5. The Opposite of Sex (1998). Teenage girl (Christina Ricci) shows up at her gay brother's house and seduces his lover (Ivan Sergei), who never once states that he's bisexual. He just likes women, like all gay men.
Gay Men are Really Women
7. The Birdcage (1996). It may have been ok with La Cage aux Folles in 1978, but in 1996, the sight of one effeminate stereotype (Robin Williams) teaching another (Nathan Lane) how to butter his toast "like a man" was infuriating.
8. Hedwig and the Angry Inch (2001). East German boy (John Cameron Mitchell) falls in love with an American GI, and decides to become a woman for him. Operation is botched, creating a transwoman with an "angry inch," who becomes a punk rocker and falls in love with a homophobic Bible-belt boy. Same-sex desire doesn't exist; it's all male-female, regardless of the body you inhabit.
9. Chasing Amy (1997). Hetero man (Ben Affleck) falls in love with a lesbian and begins the task of converting her to heterosexuality. Isn't that a debunked myth -- lesbians will "turn back" if they meet the right man? It works, albeit temporarily.
10. Kissing Jessica Stein (2001). Jessica meets a lesbian. She's astounded, utterly unaware that such things exist. In Manhattan. In 2001. To be fair, she lives in a gay-free Manhattan, where people constantly make heterosexist statements ("Oh, you got flowers! Who's the guy?"). They begin a relationship, but then Jessica switches back to heterosexual again.
Gay as Arrested Development
11. Chuck and Buck (2000). The worst gay-themed movie since Cruising. I'll save it for another post.
See also: 10 Gay Movies I Loved; 12 Songs I Hate; and The 39 Dumbest Things on TV