In America now every romantic comedy is interpreted politically. I can remember when I was promoting Black Hawk Down we were all being asked what it said about September 11th. Well, it was shot before that happened, so, nothing.

I've always been attracted to cars, and driving is a completely measurable experience: if you qualify last on the grid, you're the slowest, and if you qualify first on the grid, you're the fastest. So no one can say you're slow if you're fast and no one can say you're fast if you're slow.

It's always hard but the reality is, especially in my case, that every time I go to work I have to do it so it's become part of the job. It's an extra challenge but it's also quite often another extra tool that you have to really think consciously about getting into the character. So while it does require more work, it's maybe even an advantage to a degree because it forces you to switch, to consciously have to jump into and out of the character.

I think if you had to map that out at the beginning and you said, "Right, sit down, this is what you're going to be doing," you'd probably freak out. But I'm someone who really enjoys not being himself. So if you consider that, then it all sort of makes sense.

My chosen exercise is cycling. I just love it.

It's got to be a challenge but at the same time you have to feel as though you can play them - it's really dangerous to want to be a part of something just because you think it's going to be great. I've been sent plenty of scripts where I've known that it's going to be a great film and a successful one, but I just couldn't convince myself that I was the right person for the part. So, I think you have to be careful with that.

If you can jump up onstage and make people laugh, shouldn't you also be able to inhabit a character?