I knew that Weird Girl was going to be kind of amazing. The secret truth of Weird Girl is that I put her in there originally because I needed some way to set the boys' names.

With Corpse Bride, I saw a lot more of it during the process because we were changing things a lot. When I came onto Corpse Bride, it wasn't a musical.

Keeping the cat front-and-center was definitely a smart choice, from Tim and the animation department. Mr. Whiskers got referred to more than we actually saw him on stage. Seeing him on screen, you just love him.

I just always remember myself as the teenager with questions about movies and screenwriting. I would hope that there was somebody out there who would answer those questions, and so, if I can take a few minutes to do it, I will. It's not threatening for us. We're not being stalked, so it's easier.

The producers and I first talked about the Big Fish musical, right before we did the first test screening of the movie. I said, "I think there's a Broadway musical here." And really, from that day, we started figuring out how we would do it.

One of those strange things that happens in movies is that you need someone to actually say people's names, or else you have no idea who those kids are. This was a way for her to introduce who the important boys were in the story, but then it just was so funny that it became a centerpiece to it. When you look at the character design that Tim did for Weird Girl, and what Catherine [O'Hara] did with the voice, and it's gonna kill.

For Charlie and the Chocolate Factory, he came to me and said, "I want to do everything that's in the book, and as much more as you need, so that it all makes sense." I was like, "Okay!" And then, I would pitch back to him my love for Charlie Bucket's family and how lucky Charlie was, and that I felt so bad for Willy Wonka, shut up in his factory, all alone with these crazy Oompa Loompas.