I don't know where my romanticism comes from. My mom and dad would read to me a lot. 'Treasure Island,' 'Robinson Crusoe,' tales of chivalry and knights, things like that. Those are the stories I loved growing up.

Somebody I love and have a huge amount of respect for once told me something that, to this day, I don't really think I understand. It was probably toward the end of Harry Potter, and they were talking to me about afterwards and that kind of stuff. And they were saying, "You need to think of yourself as a brand and you need to protect that brand." I just don't understand what that really means in terms of being an actor, and I also think I would find that a slightly soul-destroying way to look at myself.

I've not got a girlfriend at the moment. Somebody said, 'Do you worry girls are just giving you attention because of who you are?' I was like, 'I'm 17, it's wonderful.'

I don't know where my romanticism comes from. My mom and dad would read to me a lot. 'Treasure Island,' 'Robinson Crusoe,' tales of chivalry and knights, things like that. Those are the stories I loved growing up.

When you're seventeen to early twenties, that's the time you're trying to work out who you are. If you're trying to make some kind of artistic or creative impact, that's the age when you start to figure out how to do that.

Also I just think I've been lucky enough to have great parents, and I've had good people around me who have always been honest with me, who would give me a purely metaphorical slap if I ever got too big for my boots.

I will never, ever do a film as successful as the Harry Potter series. But neither will anyone else.