Other mistake: When Gator chuffs past Percy during the Our Tale of the Brave song, the second to last truck in his train is not rendered properly on the rails.
Revealing mistake: In the opening shot after the title card, Bill and Ben's cylinders are protruding through their buffers. Also, Stanley's wheels are clipping through the tracks.
Revealing mistake: In the POV shot from Thomas, capturing Bill and Ben puffing away from the water tower, Thomas seems to be off-centered from the tracks, making it seem like he is derailed.
Continuity mistake: When Timothy says "See you met Marion then," the last truck changes between shots.
Factual error: When the Fat Controller arrives at Tidmouth Sheds, Tidmouth Sheds appears to be missing from the reflection.
Continuity mistake: In the flashback, Gator has three trucks at first, but when he conquers his fear and crosses the bridge, he has a fourth one.
Continuity mistake: When Thomas puffs away from Marion, his trucks change from red to green.
Continuity mistake: When Thomas first arrives at the Clay Pits, Timothy can be seen with a train of trucks. In the next scene, they have disappeared.
Other mistake: When Bill and Ben are pushing Thomas clear of the avalanche, they are not releasing any steam from their funnels.
