Corrected entry: With regards to the Thomas the Tank Engine model near the end of the film, the mechanism that moves the eyes is part of the same mechanism that drives the wheels. As such, the eyes should have stopped moving from side-to-side from the moment that was derailed. Instead, we have them moving even after the model has been blown up to massive size.
Tbdanny
16th Dec 2015
Correction: If the toy engine is derailed, the mechanism continues to function, the wheels just spin uselessly and the eyes continue to move. There's no reason for it to shut off just because it sits on its side.
Phixius ★