Continuity mistake: Lulu slides down the banister onto a stool and slides across the floor to the table for her breakfast. She gets to the table and looks at her selection for a moment, the camera still looking from the side and her hands at her sides. It cuts to a close up from in front of her and suddenly her hands are up on the table. Also the cups on the table change shape, from being more conical towards the bottom, to perfect cylinders. (00:01:30)
Continuity mistake: Bongo the bear, riding in a car of the circus train, looks out the window. There are four vertical bars on the window - but when seen from outside the train, it has six bars.
Continuity mistake: Pearl is singing a song to mock her boss at the factory. She goes through the first lines about being too worn out "to play." With her feet on the work table, she puts her hand under her chin. In the background, a fellow seamstress is watching. In the next shot, her arms changed position, now crossed in contrast to the previous shot. (00:04:40)