It's best if I stay out of future plans and let time go on.

Unlike some of the time-travel movies I love, like 'Primer' or '12 Monkeys,' 'Looper' is not about time travel. It's about this situation that time travel creates and the people dealing with that situation. So narratively, the big challenge was to have time travel get out of the way.

You come out of each movie just thinking, "God, if we can fool them into letting us make just one more, we can get it right."

I feel like people want to be surprised when they get out of the movies. They want something thrown at them they didn't expect. They want stuff that reminds them of the feelings that you get when you're watching art house movies but with the fun of like a big summer movie. That's the goal, I guess.

Back before 'Brick,' I wrote a short film that I never ended up shooting: hit men in the present who work for a mob in the future who send their victims back in time. A guy is sent his future self, he lets him run, and the whole short was them chasing each other across the city. That sat in a drawer for 10 years until after I made 'Brothers Bloom.

The critical reaction to 'Bloom' has been similar to 'Brick.' There are people on board with it and people who are not.

Memory is a form of time travel. That's something we do during the course of the day, every single day. The idea of actually being able to physically adjust that and change it instead of being haunted by it is a really human thing.