Canadian filmmaker and cultural provocateur Bruce LaBruce is getting his own documentary, The Advocate for Fagdom. Judging from the trailer, it’ll be a quip-cracking pantheon of gay gods, with the likes of John Waters and Gus Van Sant opining on the world according to Bruce. At one point, John jokes that there should be a drive-in for perverts with dusk to dawn shows where “all of our movies together would be a good night.” Yes, please…