Movie trailers have become an artform intheir own right. “At the multiplex, it is now common for a theater to present seven, sometimes 10 trailers before the feature film (as is the case now with the latest “Star Wars” episode).” Now there’s a festival to screen the best of them. “At the Golden Trailers, known as the Trailzees, organizers showed 95. It was like some kind of extreme scientific experiment you would perform with crack monkeys in cages. If it were legal.”