Other mistake: When the Fat Controller receives a phone call at the beginning, there is a train moving through Knapford with very large gaps between the trucks.
Continuity mistake: In the close-up of Gordon when he almost runs into James at the beginning, James's tender appears in its red livery.
Other mistake: When Thomas passes Gordon at Knapford at the end of the special, a goods train is derailed at the platform.
Revealing mistake: The tunnel that Gordon emerges from at the beginning is not rendered properly, as it overlaps the rails.
Continuity mistake: After Thomas biffs the trucks, the position of the way they are derailed changes between shots.
