Revealing: After Lansbury makes her clothes start to move, her nightgown attacks someone and you can notice the strings that make the gown move.

Continuity: During the football match, the camera moves back and forth the field, and sometimes Dr. Brown completely disappears.

Plot hole: When Miss Price, Professor Browne and the children return from their magical journey to the island of Naboombu and realize they no longer have the Star of Astroroth pendant, Miss Price says, "I should have known it would be quite impossible to take an object from one world into another." Yet, they had no problem taking themselves, the bed, blankets and pillows from one world into another.

Deliberate "mistake": During Lansbury and Dr. Brown's dance scene under the water, the drawings behind them (with couples of fishes sitting on their seats) are a still drawing, no animation at all.

Audio problem: When Professor Brown and Miss Price are eating, he asks, "Why are you so interested in that?" His mouth doesn't move in sync with the words.

Continuity: The closing shot of a newspaper article shows the word "rumor", film is set in England where it's spelled "rumour".

Continuity: When Lansbury and Dr. Brown finish dancing, there's a wide shot of Lansbury giving a very small step forward to finish the dance. A second later, in a closer shot of her face, she moves as if she was repeating that very same movement.

Continuity: One of Mr. Browne's apples falls on the gravy when he is juggling, splashing his face and shirt. Later his shirt is spotless.

Continuity: When the lion king blows the soccer ball into the goal, the ball disappears in the following wide angle.

Revealing: When Ms. Price starts to make the shoes move, the strings attached are visible.

Continuity: Before Ms. Price arrives in town, during the scene where the old soldiers arrive singing, the light keeps changing from semi dark to really sunny in less than 20 seconds.

Continuity: The green skirt that comes alive smacks Ms. Price's nape and sends her glasses to the tip of her nose. In the following angle they are perfectly placed.

Continuity: The white gown attacks the priest and covers him completely. In the following angle it's just covering a small part of him.

Visible crew/equipment: At the end of the film, taking place in a sunny field, Paul holds the bedknob and in both of the final shots about 3 or 4 lighting screens are reflected.

Visible crew/equipment: When Ms. Price is riding her broom in the beginning, you can sometimes see that she is not riding a broomstick but instead a saddle-like mechanical object.

Revealing: When Ms. Price is trying to fly on her broom, a wire holding it is visible.

Continuity: Before Ms. Price makes the army move, she grabs her broom and the position and shape of the handkerchief on her blouse differs between the first and the angle following.

Continuity: During the soccer match, the first time Prof. Brown is ran over, the number of footprints on his shorts differs between the first shot and the one following the vultures with the stretcher.

Continuity: Before the bed lands in the house, after visiting Portobello, the cat's tail is straight, a shot later it's curled around his body.

Continuity: When the soccer match ends, the lion king rests on the goal and you can see the damages done. In the immediate wide angle, the goalie has totally different damages.