There is nothing worse than when actors come to a set - and it happens a lot with big stars - and they are too aware of where the camera is. They are the show. And that becomes apparent and it affects the production. I am like 'You should not know where the camera is - you should act, and I will do the rest.'

All you've got to do is turn up and have a few facial tics and be a lunatic and throw someone around the room or blow their brains out and people think it's good acting.

I would hate to be thrust into the middle of a big film and not deliver. There's young actors and they're put into these central roles and they're commanding armies - but they can't quite pull it off. I'd much rather do it in small steps and build it from there.

Its different being a director. I suppose, especially if its a story youve written and you feel compelled to tell, in some ways its a lot easier than acting because youre orchestrating the piece. As an actor, sometimes youre trying to second-guess what people want.

When you're having conversations about actors, you realize these same conversations have happened about you. If you want to make a film for $5m, then you cast A, B and C, but if you want $20m, you won't be able to cast them, you need X, Y and Z.

It's such a stressful environment, I find, being an actor, being put in the chair and "Touch this, that, and the other," it's too much for me. I find it hard to tolerate that sort of stuff. If you're not enjoying it, don't do it. You're wasting everyone's time.

I don't want to be disrespectful to people who are incredible at their craft, but the truth is, if I didn't get paid for it, I wouldn't act. The best-paying jobs are usually the worst films. You're a very small cog in a big machine.