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?

I tend not to read the size of the production into a script when I'm reading it. It's just something you respond to or not and I do think it's very dangerous to say it's time now to do this or it's time now to do that.

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.

I've always been someone that sets achievable short-term goals. I've never been someone that's had a five-year plan, or a three-year plan. That just seems to lead to a lot of disappointment, and doesn't give you the chance to be flexible. So I've just always been someone that's sort of reassessed where I'm at, and set goals that are realistic. And luckily, I've had plenty of chances to recalibrate and adjust, and good fortune's come my way.

I enjoy just being cocooned in production and it's completely different to your other life that you have. I enjoy that. I enjoy being on the set and hanging out and talking to whoever we're working with and just being in the moment.

I've always been a bit of a car freak.