Looper - 8/10
It has a few plot holes. Once your future self gets to the present, there's really no foundation as to why things happening to your present-self would affect your future-self. When you're both in the same time you're two separate people (albeit identical with the exception of age). You're not linked as it were. The time travel bit was a bit corny and loose in concept I feel, it also didn't employ chaos theory at all, which always annoys me about movies involving time travel. And some things didn't logically end up.
But, if you step out of nerd-mode and fixate on the story rather then the science, it is a great movie. It has a very gripping plot. And especially the first part of the movie, man, that was absolutely morbid. You don't see anything gory, but the implication of it was more then enough. I'm not easily queesy, but **** me sideways. Holy cow.
It really is an awesome film.