Your character takes a huge step up in "Half Blood Prince," more presence and certainly more drama. Were you nervous?
TF: I came into the film horribly nervous. Our director, David Yates, had terrific confidence in me. I had some one-on-one readings with Michael Gambon and Alan Rickman, which made me even more nervous! Draco's quite solemn in this film, so I spent most of my free time on set staring at walls. Usually in between takes we'd talk about what movie we saw last night. I had to practice feeling despondent from everyone else.

Up next for you is a cameo in Russell Brand's "Get Him to the Greek." How did that come about?
TF: Jonah Hill came down to [the "Deathly Hallows"] set three or for months ago -- and I'm a massive Jonah Hill fan; I milked every minute. The next day, someone got in contact and asked if I wanted to come down to London for the last bits and pieces of their shoot. I thought someone was winding me up. I was incredibly nervous, not being on another film set for the past 10 years.

What does your part involve?
TF: Without saying too much, there's a couple of brilliantly awkward things that only Jonah can do. To say there were some humorous Harry Potter innuendos would be a start. Also, I'm so used to stop-start shoots with like 30 minutes in between. With these guys, they roll a thousand feet of film and improv so much.