You never want to make a "message movie," but you always want to be talking about something that you care about.

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.

I do love science fiction, but it's not really a genre unto itself; it always seems to merge with another genre. With the few movies I've done, I've ended up playing with genre in some way or another, so any genre that's made to mix with others is like candy to me. It allows you to use big, mythic situations to talk about ordinary things.

You go from these high hopes when you're writing to just a desperate want of not making a complete fool of yourself by the end of it.

Writing in a lot of ways feels more like excavation than construction. It feels like you're uncovering this thing bit by bit, discovering what it is, instead of constructing it upwards.

I mean, the first “Back to the Future” is kind of a perfect script, I think. In terms of handling time travel the best, it depends on your definition. To me, that means it effectively uses it in the story.

I just don't think CGI is up to manipulating the human face yet. I feel like you can get away with it with aliens or monsters or something that's intentionally foreign, but I have yet to see anything digital to do with the human face that doesn't just look ridiculous.