The Math Mage never cut his nails for his role.
The Greasy Knight was originally supposed to be mute and with a helmet fully covering his face. But the face plate became suffocating. When the crew heard Darius Copland's Rocky impression, it had to be in the film.
Chris Morrell, the man who played the Brogre Leader, played friars in Renaissance Fairs.
A script reading (the cast comes in to play the roles of their characters in a closed setting) was held at a location right where a major film was being produced. Naomi Watts and Ben Stiller were involved.
There were about 4 combs broken in the film.