I get a kick out of movie trailers recut in a way that it changes their genre. Like this one, where Glengarry Glen Ross is remade as a gay love story:
Glengarry Glen Ross is one of my favorite movies, and not just because I'm a realtor. And I haven't seen Brokeback Mountain, despite hearing from people I respect that it's quite good. But I'd see the gay Glengarry just because a better cast has rarely been assembled.