Sean Astin (Twoflower) and Sir David Jason (Rincewind) are long-term Pratchett fans. Jason named "The Colour of Magic" as his choice of favorite book of all time in the BBC's Big Read survey.
I hope it's a good party!
Death: I think it might go downhill at midnight.
Death: That's when they think I'll be taking my mask off.
When Rincewind and Twoflower are on the rock next to the Circumfence, the string holding Rincewind's hat around his neck keeps moving from above his beard to below it between shots.
Mucked about by Terry Pratchett