I never contemplated. I just went in there and did my acting. I never thought, "What's the character actually feeling here? What's he trying to get across?" And never looked at it from that classically trained actor's point of view.

The great thing about filming a film is that you all have your final day's shooting, but you always know that you're all going to be coming back for the premiere.

I'm very comfortable being at home and keeping my head down, really. It's nice being invited to night clubs and stuff, which is nice once in a while, but I prefer to kind of keep to myself.

I'm very self-conscious as an actor, with performances and things, and I don't like watching my own stuff.

Having done television, I was used to either being aware whether I got the part within the same day, or within two, three days max.

I must confess I don't own Harry Potter DVDs. My parents do. They have them all. And they like watching them. They've got all their home videos done in HD quality! They love it. But I struggle very much. I'm very self-conscious as an actor, anyway. I don't like watching my own performances, even in this recent one.

I think David Yates was just like, "You've got on with it for a few years, I'm gonna let you off the hook." And also, I think it's because the action side of stuff that we were doing, it was going to be very difficult to do all that with all the prosthetics on. It was gonna be hard work, and I think they just said, "You know what?" I think they put a level of trust in me, as well. They said, "You know, we're gonna let Neville Longbottom lose the fat suit, lose the teeth, lose the Adolf Hitler hair."