If someone tried to take the hierarchy thing too seriously - for example, being lovely to producers but moaning to runners about the tea - that would not be accepted on 'Harry Potter'; someone would pull you aside and have a word.

I have met a couple of six-year-olds who were apparently quite excited to meet me - before they actually met me. And when they actually met me they ran behind their parents' legs and cowered for shelter.

Knowledge will not be acquired without pains and application. It is troublesome and deep, digging for pure waters; but when once you come to the spring, they rise up and meet you.

When we're not trying to kill each other with spells, we just sit in in Daniel's dressing room watching cricket games on television.

I don't go to the cinema much.

I have done a bit of recording and the songs are available on iTunes, and I've got some nice comments. It's something I enjoy doing, but I'm not looking for a singing career any time soon. As long as one person gets enjoyment out of it, I'm happy to make it available.

I used to have some fish, some nice little carp, but they got too big for the tank. I don't have any pets now.