I'm never going to be in something as commercially successful as 'Harry Potter' ever again. It's impossible. So that gives me incredible freedom to go off and make the slightly off-the-wall films that I want to make.

I don't think there's anything that I would really baulk at doing on-screen. I don't think so. I've got certain pet peeves about writing... my pet peeve about reading scripts is when they give you a line reading and there'll be a line but next to your character's name it'll say 'very angry'. But I'm like: "Well, I'll decide that actually!" So, there's little things like that. That's a slight pet peeve.

I'm sure when I have a nostalgic, teary moment in 10 years time, I'll try to put the glasses when I was 10 on and cry to myself in front of the mirror

There is always this thing of will you get too old for your part? But people are playing a lot younger than they actually are in real life. I don't think it's as big an issue as a lot of people are making it out to be.

The best thing I've learned is, if you're going out, never go out alone - you leave yourself vulnerable. If you've got someone else there you trust, they can say, be wary of that person. I probably used to be too trusting of people.

Just keep acting is my plan, I just want to keep going for as long as I can. I've had a fantastic time on Potter, I will be very sad to leave it because every time I look back on one of these films, every scene I watch will be forever linked to a memory of what happened that day or something that was happening around that time in my life.

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