ComingSoon has posted their set report from Half-Blood Prince.  They have interviews with Jessie Cave, Bonnie Wright, Tom Felton, Emma Watson, Rupert Grint and Daniel Radcliffe.

Q: The revelation that Dumbledore is gay came out before you started shooting this film. Has that informed your performance at all on set or off set?
Radcliffe: Off set, yes. We’d been shooting for a few weeks when that came out actually, but we’d been shooting entirely almost with Michael [Gambon] and myself, and so when that came out he loved it. He thought it was hilarious. And you know, I know it didn’t go down well everywhere by any stretch of the imagination, which I kind of find even funnier. I think Michael started camping it up around set. I don’t think it’s come out on screen at all, but he certainly was camping it up around set when he was talking to people.

Q: How so?
Radcliffe: Just generally. He was just making lots of jokes. None of which I can really say or repeat, so I’m not going to try and do them in a softer way, because it wouldn’t be funny.