I like to keep myself in shape. I run and do weights when I go to the gym.

The idea is that Jodie Foster is with her child and she's going back to New York from Germany with her husband's body. She loses her child on a plane, and you think, 'How can that happen?' There's no record of her having brought a child onto the plane, and the captain is left wondering about whether she's telling the truth. You never really know if she's telling the truth or not.

I think that you always have something left, that you take something of the character with you.

I sometimes find that playing the bad guy, or villains, or psychopaths tend to be much more psychologically rewarding. And you can really push it, you can push the limits, and get away with it.

Sharpe is my favorite role of all that I've played. He's a very complex character. He knows that he's a good soldier, but he will always have to fight the prejudice of aristocratic officers because of his rough working-class upbringing. On the battlefield, he's full of confidence - but off it, he is unsure, a bit shy and ill at ease.

Oblivion is something unique, an entertainment experience unlike anything I had seen before. I decided this was a project I really wanted to work on creatively, and I hope fans of the game enjoy the results.

My family thought the fascination with acting was just another fad.