I like celluloid, I like film, I like the way that when a movie is projected it sort of breathes a little in the gate. That's the magic of it to me.

People imagine that actors are being offered everything and you are not. So things come in and sometimes there are things that I want and can't get a meeting on, or go to a different actors.

I was quiet, a loner. I was one of those children where, if you put me in a room and gave me some crayons and a pencils, you wouldn't hear from me for nine straight hours. And I was always drawing racing cars and rockets and spaceships and planes, things that were very fast that would take me away.

I tend to read non-fiction.

I have three kids who like Harry Potter so I was sort of aware of it. You can't really move from it: it's on buses, in stores, it's everywhere. One of my kids has read the books; the other two are too small but they like the movies.

On set I keep myself to myself; I'd rather the director speak up. I'm not gonna direct a younger actor. I think the power of example works best, actually.

It's always hard when you're playing someone for a lot of people out there who are going to see the movie after reading the books. There's a communion between a reader and the writer, so people will have an idea who Sirius Black is and I might not be everyone's idea of that.