People tell me I look mournful. They say, "Cheer up, Dan, it's not that bad!" Sometimes, I just look into space, which freaks people out. If I was ever required to do anything other than look haunted, I could. I'm a happy person.

There's an incredible comfort level that I have on film sets because it's where I've grown up.

No. I am not a royalist. Not at all. I am definitely a republican in the British sense of the word. I just don't see the use of the monarchy though I'm fierce patriot. I'm proud proud proud of being English, but I think the monarchy symbolizes a lot of what was wrong with the country.

The nerds are the ones that make the films and do loads of other really cool stuff in their life.

A lot of modern horror can leave me cold, and I'm not good with blood and gore and all that stuff. It's not fun for me. There's nothing entertaining about watching a film like that.

Richard [Griffiths] was by my side during two of the most important moments of my career. In August 2000, before official production had even begun on Potter, we filmed a shot outside the Dursleys', which was my first ever shot as Harry. I was nervous and he made me feel at ease. Seven years later, we embarked on 'Equus' together. It was my first time doing a play but, terrified as I was, his encouragement, tutelage and humor made it a joy. In fact, any room he walked into was made twice as funny and twice as clever just by his presence.

My friends have always called me 'Mr. Thorough,' in that when I get into something, I become obsessed with it.