If I can make a career for myself after Harry Potter, and it goes well, and is varied and with longevity, then that puts to bed the 'child actors argument'.

If you spent a proper amount of time with me, you would probably wonder if I was on drugs - I'm not. I'm just incredibly hyperactive and manic. I can be quiet and serious at the same time.

Being in Harry Potter is like being in the Mafia. Once you are in, you are never really out.

My dad's got a brilliant eye for scripts 'cos he's a literary agent. He and my agent read a load of scripts and filter them.

My preparation is mainly just knowing the lines and getting in and knowing where your character is, knowing what it's about and having ideas that you can put in on the day.

I like the idea of not having to do stuff for the money, and if I want to, I can pick indie projects for the rest of my life and be quite happy doing that.

I definitely want to go on acting for as long as I can find employment. I'm never happier than when I'm on a film set. I just want to keep working.