I used to be self conscious about my height, but then I thought, f*** that, I'm Harry Potter.

My idea of relaxation is not lying down by a beach. I have to move around, do stuff. Though I'm a massive quiz show person.

Every day the Daniels [Kwan and Scheinert] would come up with some amazing solution and [make it easy] to put yourself in their hands. There's something really lovely about knowing you're working with directors who know exactly what they want and exactly what they're looking for, and they're not going to move on until they have it. That, as an actor, frees you up a lot because you can [try different approaches] and they'll only use what's appropriate.

If you're on a date and somebody comes up and says, "Oh, I loved you in Harry Potter," it's a bit weird, because you suddenly start thinking, "Oh, God. Is this weird for the other person I'm here with, or is this weird for my family?" But generally speaking, I don't really think because I was thrown into it so young and kind of always had that, it's just something you get used to. And most of the time... It was interesting.

It's mainly about working hard and proving to people you're serious about it, and stretching yourself and learning. The mistake a lot of actors make, particularly young ones, is allowing themselves to feel that they're the finished articles, the bee's knees, and it's not true.

I like the idea of being a youngish parent. So I've got energy to play football even though they'll be better than me by the time they're four.

And I'm slightly in love with Scarlett Johansson: she's just stunning. And she's bright, which is incredibly sexy.