There's this mean girl called Lavender who has a bit of a crush on Ron. It's leaked in the beginning of the film that Hermione and Ron are finally going to get it together, and then she steps in. Hermione is sensitive and quite mean, really. And it's very much about how she sort of despises Lavender. Not really because she's taken Ron away, but because she's kind of the opposite of Hermione. So it's very comic and also quite sad for her. It's very Ron based, her part.
What really stuck out for me was Ron's Quidditch scene. It was so funny. Rupert's comic timing is just brilliant and he's so funny. There's this great scene where Hermione and Lavender are fighting over Ron, and we had a bit of fun with that. With Dumbledore's death scene it was absolutely freezing that night and it was a very sad scene, really.
Emma Watson.
interview.