MSN UK recently did interviews with Daniel Radcliffe, Rupert Grint, Emma Watson and director David Yates.  Here are some segments:

QUESTION: Back to the world of Harry Potter. Will Harry Potter and the Half-Blood Prince show another side of Harry?

DANIEL RADCLIFFE: There’s friction in this film it’s much more to do with Ron and Hermione than it is to do with Harry. Harry is unhappy for a lot of this film, mainly because people keep trying to kill him. And his love life is awful, too. That’s what Jo [JK Rowling] does so well: combining everyday, mundane problems with this incredible other world.

QUESTION: How tough was it to have your character start a romance onscreen with Ron, especially since he’s played by an old friend?

EMMA WATSON: I don’t know that it’s tough. Rupert’s a really laid back guy but I’m really looking forward to it because I quite like the romantic comedy side of it. Rupert and I end up providing light relief, as the films get darker. It’s funny seeing Rupert struggling in the romantic stakes. Hermione and Rupert are so different yet they have this chemistry, so it’s interesting. It’ll be awkward doing those love scenes; there’s no other way to put it, but its all part of the job.

QUESTION: Was there ever any remote chance that you wouldn’t come back for this sixth Harry Potter film?

RUPERT GRINT: For me, there was no doubt. So long as they wanted me, I was coming back to do it. I really enjoy doing this and it’s really cool.

QUESTION: Have you noticed a difference in the cast who have been off to do big projects in the past year?DAVID YATES: Yeah, I have. They are getting better and better and Emma seems much more confident this time and much more at ease generally. And Dan, having done Equus, he’s just finding moments and beats that are really surprising and lovely. So, they’re all getting better and more sophisticated.