Where do you think ‘Half-Blood Prince’ makes the biggest departure from earlier Harry Potter movies?
I think it’s in the comedy. We really go all out on the comedy this time. It’s a very funny film, there are some really funny moments in it. And there are more drug references in this film than there have been [laughs]. It’s very strange trying to explain them to people sometimes. Also, I think in terms of Harry’s character, individually, before he’s always been Dumbledore’s student, whereas here he becomes Dumbledore’s lieutenant. In this one he’s a fighter. He’s starting on the path to becoming the warrior that he is in part 7. How has the dynamic changed for you, Rupert Grint and Emma Watson on set, going from child actors to adult stars? It’s been great, actually. But what’s great is that the people we work with, in terms of the crew, have seen us when we were kids as well, and so I think it’s been interesting for them to see the journey of starting to take it seriously and going from being kids who were having a great time on a film set to suddenly really wanting to do this for a