As Rincewind involuntarily becomes a guide to the naive tourist Twoflower, they find themselves forced to flee the city of Ankh-Morpork to escape a terrible fire, and begin on a journey across the Disc. Unknown to them, their journey & fate is being decided by the Gods playing a board game the whole time.
Terry Pratchett's The Colour of Magic Part 1
Terry Pratchett's The Colour of Magic Part 2 2009
Video from 2009