I like playing the contrasting roles. It what inspires me to act. If I look back on my career I am happy that I have gotten to play a wide variety of different roles, from Mike Dexter, to Van Ray in Fast Lane, to Dr. Cullen to Coop.

Twitter for me is a form of entertainment for the followers and it's also a source of information. I try to tweet things that I think might make people smile, or to share information that I want to get across, like an event like this that can inspire other people to get involved. I try to mix it up. I think that is a reflection of me - a family man, an actor, and a philanthropist.

...Something about, 'I love my dad, I love my dad, makes me feel better when I'm sad ... I love you to the moon and back.

I read the books the day before I had met with the director Catherine Hardwicke. The first I heard of it was my agent called and said, 'Do you want to be in a vampire movie?' and I said 'No.' I thought it was like a zombie, blood-and-guts, vampire movie.

Everyone had coverage. You might have like three lines, but there were 10 people, so they would cover each person. Three lines could take 12 or 15 hours, but it was fun because everybody was together. As hard as it was to shoot those scenes, I always enjoyed when we were all together.

We've always had to worry about the electrical grid and nuclear facilities, and they remain a concern; but cyber-terrorism, you know, which is a word that you hear more and more, I think is a reality.

When you are creating your character there are a lot of questions and sometimes you doubt if you are making the right choices.