the Twilight saga, Xavier Samuel, who plays muscular college-age vampire Riley Biers, has starred in many gay-positive movies and tv series back home in Australia.
2:37 (2006), a high school angst ensemble, with a gay dopehead facing homophobia (and getting a boyfriend).
Best friend to a gay guy (Miles Szanto) in Drowning (2009).
And even when there's no explicit gay content, there's plenty of homoromantic buddy-bonding. And nudity
A Few Best Men (2011), about a bridegroom (Xavier) who can't choose one best man from among his three mates.