If we have a great idea, we'll go, 'Oh, this could be a cool movie.' Or really for us, it's more like, 'Oh, this is a really bad idea. Let's do this. This seems really stupid.'
In terms of the creative side of it, it's really been a thing where you come up with the funny stuff is usually at a bar or out talking to people or whatever.
It was exactly the same on the South Park movie really too. There's lots of violence in that too, but it always came down to anything sexual... They don't care about anything else.
It's been a fascinating thing because we didn't really know how to write when we started South Park at all. It's been like, we've just sort of grown up a bit and it's amazing to just see how, if you take Butters and Cartman and put them in any scene, it works.
It's funny because I think a lot of it is simply... We've never considered ourselves satirists, but because we're on Comedy Central and because we're South Park on Comedy Central, we can do any topic we want.
It's not like we have a formula, but I think one of the reasons this show has survived is that it has a big heart at its center. Other cartoon shows have people crap on each other and make racist jokes. But I don't think people tune in for that. I just don't think a show lasts for 10 years without a heart.
It's this simple law, which every writer knows, of taking two opposites and putting them in a room together. I love anything with Cartman and Butters at the same time, it's great.
My favorite musical? I don't. It changes all the time. I'm just a diehard, I'm totally old school, like I'll sit and watch, if they are re-doing Oklahoma in New York, I will be the first one there.
No, writing musicals is the hardest thing in the world. And it was really funny, because I remember when the South Park movie came out, there were some critics that said, 'Well it's obvious that in order to get it to be 90 minutes they filled some time with music.'
So we're considering doing a new Christmas album, because there's been Christmas episodes since then, and maybe finally do the version of "The Most Offensive Song Ever" with lyrics intact.
