I don't like to label films with a genre.

I'd like to know about some of the things that they teach down there, like building a lake. If I ever wanted to build a lake, I'd like to know how to do it.

It's remarkable to see the advancements since the early days of [Harry] Potter with putting LEDs on everything, pointing sticks and measuring. Just archaic stuff. Now, it's like one guy with a laptop.

I hope to be scaring children for the rest of my life.

One thing that people keep on saying to me is that the wealth and the fame must have made up for missing out on my childhood. But the idea of money - putting a price on your childhood - is ridiculous. You will never get those years back and you can't put a price on them.

Nothing's really changed since the Harry Potter films came along.

Whether it's acting, directing or writing, I want to be involved in the film industry for the rest of my life.