Revealing mistake: When Cohen complains about how nobody takes him seriously because he doesn't have teeth anymore, you can see a full set of teeth in his mouth.
The Colour of Magic (2008)
1 revealing mistake - chronological order
Directed by: Vadim Jean
Starring: Christopher Lee, Jeremy Irons, Tim Curry, Sean Astin, David Jason
Other mistake: Radio aerial visible on building. (00:09:40)
Rincewind: That's old Twoflower for you. He just appreciates beauty in his own way. I mean, if a poet sees a daffodil, he stares at it and then writes a long poem. But Twoflower would wander off and buy a book on botany, and then as he reads it he would tread on the daffodil.