Research can be interesting, but it can be pointless as well. The realities of making a movie often are not conducive with that. I'm not knocking it. I love doing research myself, but I admit it doesn't always add to the performance.

But I enjoyed getting sick, I didn't mind it at all. So in that short amount of time, I did actually go from 121 right back up to 180, which is way too fast obviously. And that resulted in some doctors visits to get things sorted out.

How serious can a movie about time-traveling robots be? You want it to be cool and fun.

An actor should never be larger than the film he's in.

Putting on weight is easy all the way through. But after the first couple of weeks, the novelty wears off very quickly, and your body is groaning and starting to really shout at you, saying, 'Why? Why? Why? Why are you doing this?'

People always say, "What do you want to do next, what kind of movie do you want to do next?" And I say, "I wanna do whatever script that is the best one that comes my way." I certainly would never say, "Oh, I'm gonna do a Western next," and sit around waitin' for a Western to come along when there's some other genre's brilliant script sitting right there.

I tend to stay in character between scenes... to be rather serious on set, but here's why, and I think people will find it surprising. I'm one of the worst 'corpses' on a movie set, which means you can't keep a straight face. You start to get the giggles and you can't stop.