An actor puts himself in the hands of a director. And the director's first responsibility, obviously, is to tell the story, but the smallest thing that's not true reads on the screen. So if a director sees that an actor is not believable, he needs to help him become believable.

Saw has been a unique experience in that Ive had the opportunity to work with some really great artists, and everyone has contributed in so many different ways, in all of the different departments of a film crew.

I try to think of acting in terms of thinking and doing. People think of it as, "Oh, let's get inside this guy." They think that acting is being, or feeling, or emoting. It's as much doing. One of the first things you do as an acting student is ask, "Can you say words and do a task at the same time, like sweep a floor?" You get to watch the human condition, and there's always a "doing" aspect of it. This couple, they're carrying backpacks, where are they going? Students? Or are they carrying instruments? It stimulates the imagination. So acting is doing ... and I forget how we got off on that.

'Buried Alive' is a little scary, but also a comedy at the same time.

I learned that I could not do enough work; it's always incomplete. When you ask a question, the answer will raise four more questions, and those four will become eight.

I'm always amazed... I took my 11-year-old to an oceanography camp, and these girls came over to me, and my son was like 'Oh here we go, Dad,' because they had been looking. They were like, 'You're the guy, aren't you?' And I said, 'Well, maybe.' They said, 'He is, he's the guy on 'Charmed!''

The only thing worse than working acting in an airplane is working in a prison - they're cold, and the clanging and the noise, it just gets under your skin after a week.