Rian Johnson's (late of "Brick" and "The Brothers Bloom") scifi movie "Looper" finally has a trailer:
Premise concerns future mobsters who dispose of victims by zapping them 30 years into the past, where specialty hitmen called Loopers whack and dispose of them (the guys aren't supposed to exist yet and thus register as just another John Doe is, I'm assuming, the logic in that.) Joseph Gordon Levitt is the Looper of the title; whose most-recent assignment hits a snag when the intended victim (Bruce Willis) turns out to A.) have an escape plan and B.) actually be himself from the future. I'm gonna guess the idea is that "you will at some point off your elderly self" is something Loopers agree to (hence the hoods so they don't know when it happens?) and the origin of the name.
Killer idea, hope it works.