I thought Sleepless in Seattle was the gay Sleepless in Seattle. You don't get much gayer than that movie.
EDIT: because I feel like quoting Mad TV
[Sleepless in Seattle] is gayer than Richard Simmons, holding a rainbow flag and twirling a baton, marching in a gay pride parade.
[Sleepless in Seattle] is gayer than George Michael sucking the filling out a Krispy Kreme donut in a portapottie at an N'Sync concert (which is now so much more relevant).