Looper is the film I most want to see this year. I am a huge fan of director Rian Johnson's work (Brick, Brothers Bloom) and I think Joseph Gordon Levit is one of the best actors of his generation. Looper's released date is September 28th, 2012.

In a futuristic gangland, a killer (Gordon-Levitt) works for a mob in the year 2042 and kills people who are sent from the year 2072. He recognizes one victim (Willis) as himself and hesitates, resulting in the escape of his older self.

As this is a film in the time travel science fiction genre, I know I will be impressed just from the fact that Rian Johnson had Shane Carruth (of Primer fame) look over the script.