Brain Snacks: Tasty Tidbits of Knowledge
Apparently when Disney signed on to make The Wee Free Men into a movie, they wanted Tiffany to receive a gold star every time she achieved something… which feels very kindergarten. Pratchett wasn't having any of it, though. (Source)
The Wee Free Men takes place in the Discworld universe, so that means that Tiffany Aching lives in a world that's completely flat. (Source)