I always wanted to be an actor and I'd never dreamt that not only would I be able to do this for a living, but also on top of that I'd be able to choose and steer the course of my own career.

It was closer to manual labor than shooting a film. I always think of something Michael Caton-Jones told me: 'Pain is temporary. Film is forever.'

A single idea from the human mind can build cities. An idea can transform the world and rewrite all the rules.

What I do is whatever it takes, it takes. Sometimes you see a scene right away and a take looks great so you might print that and you might print a couple more and take elements of all three. It just depends. You're looking for the highlights. You're looking for the best elements of the scene, but preferably you'd like to have one good take that would go all the way through.

When I grew up, I lived in the ghettos of Hollywood; it was the most disgusting place to be. I was known as the crazy little kid. I did impressions. Then I realized that's not what I want to do. I don't want to be a comedian to please other people.

Marty [Scorsese] knows that when an improvised moment comes out of a real situation, it's gonna have more life and more going on than anything you can imagine and that's how the character can become the story

Playing Arnie was fun because everything I did was spontaneous.