If you're going all the way back to La Jetee, I agree that it's been a major source of inspiration for many a science fiction film over the past 50 years, but other movies, like 12 Monkeys, have taken ideas from it at least as directly as Looper did.

Whatever. I just look at it, especially in this case, as variations on a theme.

As for the movie itself, I didn't make a very big impression on me. It barely even crosses my mind when I think of my favorite movies from 2012...