Q: People were surprised when you were announced as the director of this movie and to your credit, you pulled it off. What were the challenges for you?

David Yates: Initially it's pretty scary. When you go to Leavesden which is where these movies are shot, the scale of the enterprise is just enormous. I went to see Mike Newell shoot "Goblet of Fire" for half a day and it feels like you're walking into this Roman arena. It's massive. You've got butterflies in your tummy to begin with, but I really, really quickly found my feet really. I think what you do is you just learn to prioritize what's the most important thing for you to focus on as a director and for me it was working with Michael on the screenplay, pushing the performances and putting a creative team together which is a kind of combination of people I've worked with before and people who had already done some "Potter." Actually, it's an incredibly safe environment. That's what I'd say about "Potter." David Heyman and David Barron are both incredibly supportive. The studio was very excited by the dailies so I felt actually quickly very, very confident about the whole thing and I had a great time doing it really.

Q: When you have such a hardcore fan base the way "Potter" does who seem to know every word in the books, do you tamper with that in the screenplay? Also, what was it like to have a die hard fan like Evanna Lynch looking over your shoulder?

Goldenberg: Certainly you can't not be aware of all of those fans out there, but we're all fans ourselves. From the very beginning it was very liberating because from the first time, we met with Jo she gave us permission to do whatever was necessary to make a great film. She told us she wants to see a great movie and understands that now more than anybody what you need to do to translate from one medium to another. It felt like we were on pretty solid terrority there. When we started we wanted to keep up with the spirit of the books and to make the best possible movie and version of that story.

Yates: I think ultimately the ambition is to kind of reflect that spirit because you inevitably have to loose things along the way to service a theatrical experience for an audience. Evanna was just utterly delightful to be around. I'm sure she knows more than J.K. Rowling. She's just a formidable mind of information. She's very sweet and very lovely and she really knew Luna inside and out. I was able to lean on that and we were able to have very frank conservations about what Luna would and wouldn't do. She's just so delightful and she's a natural actor. That's what was really delightful about her is that you can't see the acting. That's my favorite kind of acting actually.

Q: Are there a lot of deleted scenes in this film and what we can look forward to on the DVD?

Yates: We actually didn't lose that much. It's really interesting because we had such a tight script going in. There are about a half of dozen scenes that are going to be on the DVD extras. There's a really sweet scene with Emma Thompson who plays Trelawney. I just did this improvised scene with her while she's eating dinner while Imelda is doing the big speech in the great hall. Emma does this whole comedic routine where you know she's very short sided so she ends up spilling her dinner all over and it goes on for about three minutes. It's really Chaplinesque actually. Obviously there was no room in the film for that so we've stuck it on the DVD extras. There's a terrific scene with Imelda and Emma when Imelda is kind of assessing Trelawney and we montage that whole scene in the cut. It's actually a self-contained scene in its own right. It's actually very funny. And then three or four other things that are quite fun.