At that age, filming Harry Potter, I never contemplated. I just went in there and did my acting. I never thought, "What's the character actually feeling here? What's he trying to get across?" And never looked at it from that classically trained actor's point of view. And so when Jason Isaacs started throwing up these ideas, I thought, "Whoa. What an interesting way to look at acting." Which is why, again, I would do theater.

Approaching a comedy character is fun because you get to sit down with the director and ask, "What makes you laugh?" Then you end up bouncing ideas off each other.

I love playing football. I started playing for a school team, which is fun, and I play a lot of five a side. I nowhere near good enough to go professional but it's definitely one of my main hobbies. I play three times a week.

I get recognized now and again, but the paparazzi aren't following me around.

I'm very comfortable being at home and keeping my head down, really. It's nice being invited to night clubs and stuff, which is nice once in a while, but I prefer to kind of keep to myself.

I never went to drama school.

The great thing as an actor is that I don't know what my agent is going to call me with next.