Sean Penn's really the only one stupid enough to put anything down on paper.

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.

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.'

We made this really dumb decision to put on the cover nothing from South Park but just a real life photo of a piece of pooh dressed up like Mr. Hankey, and a lot of people didn't, they didn't even know what it was.

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.

Saying goodbye doesn't mean anything. It's the time we spent together that matters, not how we left it.