I'm very, very serious about what I do. I think there are a lot of people out there sort of thinking it's anybody's game. You know, "You pick up a camera and you make a movie." My experiences over the years have taught me there's a lot more than that to making a film - there's also getting the film seen, and all kinds of complex realities.

I am a smoker, I'm ashamed to say. I had given it up for many years, then picked it up again. It's a horrible habit. I struggle with myself all the time. And I love to smoke.

I was really not familiar at all with Edward Snowden. I like to get that right out of the way and really learned most of what I know from Oliver's [Stones] script.

That's probably the biggest secret of acting: If the actor believes it themselves, they can make you believe it.

The director is the captain of the ship, without question. No matter what their talent or energy level is, everyone on the crew has all eyes on the captain. If they come in going, "I don't know. Maybe we'll do this. Maybe we'll do that," you've got 10 days to shoot and they don't care what you're doing.

I think the funny thing about acting for me - and I hold it in a very holy, spiritual way - not to be overly fundamentalist about it, but it's that important to me - is that it is an ancient healing art.

The key to acting has much more to do with listening than with talking.