Continuity mistake: Ted and Dougal are sitting in the fourth row from the back for the journey. But when Ted presses the emergency button and after the credits, three completely different men are sitting in their seats. Everyone has been given seat numbers so they should not be sitting there.
Revealing mistake: When Ted jumps onto his bed (when the nun replaced their mattresses with bricks), you can see both beds are bouncy when Ted lands on his bed and Dougal lifts back the covers on the bed half way through the episode. (00:19:20)Neakiaro