I really don't like the trend of advertising for advertising. It's weird to tease a trailer. But if you're going to do it, do it this way: with actual content. Usually the teaser for a trailer is just twenty five seconds of a two minute piece, but this teaser for the Looper trailer has Rian Johnson and Joseph Gordon-Levitt chilling out in a screening room telling you a little bit about their movie. Yeah, there are a couple of flashes of the trailer, but what this piece really does is set you up as oppose to try and tease you.