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.

I counted it up once. I think I have written 45 full screenplays. Of those, maybe 15 have been shot, in some form. That's a pretty good track record, but it's not 100%. It is frustrating that, as a screenwriter, I've seen all those movies and they don't exist in the real world. They're juts inside my head and on those pages.

I convinced Tim to add one song, and then we added five. We changed a lot of things while we were shooting, which you should never do in stop-motion animation. With this, it was a much smoother ship, so I wasn't getting sent the scratch reels of things.

Frankenweenie is also about mortality, but at a very different stage. It's losing a parent versus losing a dog. I don't run away from the tears of that, which I think is what makes it feel universal.

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.

When Tim asked me to do Frankenweenie, he had his original sketches from before he did the short, of what Sparky looked like, and he drew Victor and some of the other crucial people. The remarkable thing about working with Tim is that, once he's read a script, he sketches out everybody else.

You're looking, moment by moment and scene by scene, how you can tell the most interesting story. So, we had this great short and we knew that we had a story about a boy and his dog. Because we had that pure emotional core, we could go on crazy tangents and always come back to Victor and Sparky. When I wrote in stuff like Weird Girl and the cat poop, Dutch Day and the windmill, it felt like it was part of Tim's universe.