ScifiWire has posted a new set report for Half-Blood Prince.

Can you talk about the scene that you’re shooting now?

Yates: Yeah. This is a, Ron’s big Quidditch match, and he’s really nervous, and he’s not very good, and he’s terrified, frankly. And so it’s really about him building up to the game. And Harry [Daniel Radcliffe] pretends to slip some Felix Felicis, which is this potion that apparently gives you great luck, and Harry’s going to pretend to slip it into his drink to give him this bravura, which he doesn’t have. So it’s a gentle, funny scene about Ron’s trepidation about playing Quidditch. …

Thanks ICM!