There's not many people on the face of the earth that don't know Harry Potter is Daniel Radcliffe. He's had that since he was eleven years old, yet he hasn't changed since the day I met him.

I'm very professional.

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.

Michael Gambon telling filthy jokes and Alan Rickman talking about scrambled eggs, just really normal things, and yet they're these amazingly, superb, famous actors. I feel so privileged to have been around them on the set of Harry Potter.

I love making people laugh, and to be able to be that humorous character was great. And I actually was very similar to Neville Longbottom. I was very shy and chubby-cheeked. I wasn't bullied at school, but I wasn't particularly outgoing. We were similar. And so I loved playing him.

The reason I feel bad for Steve Kloves is because he doesn't enjoy cutting things out. He's not sitting there with scissors, just laughing maniacally, going, "Ahahaha." He doesn't like doing it. The stories mean so much to him. But it had to go. And David kept saying, "We're gonna try, we're gonna try, we're gonna try" all the way into the shoot until the very last days, when he said, "Sorry, it's just not gonna work."

I think screenwriter Steve Kloves does such a difficult job. And he does a bloody brilliant job, too. Transferring these Harry Potter books into films and making them coherent is one thing. But making them entertaining, as well, is quite another... He does a tremendous job, and he gets a lot of stick. And it's really unfair sometimes, and I challenge anyone else to do the job he does.