Continuity mistake: In one scene, Elvis Presley's prison uniform displays the number 6239, yet in another it becomes 6240.
Continuity mistake: When Fred Astaire and Cyd Charisse are dancing among the parallel bars, her skirt changes to cullottes then back again to an ordinary skirt.
Continuity mistake: When Maggie and Richard Avery leave Professor Flostre's room, she puts a beret onto a statue. About four minutes later, when Audrey runs out the room, the statue has disappeared.
Continuity mistake: When we see the door saying "No Wolves Allowed" at the House of Bricks, you can see the door is blue and made of wood. But when the Big Bad Wolf is standing by the door, it now appears completely plain.
Continuity mistake: The character Sid Sorokin sings the song "Hey There" into a dictograph machine. He then plays it back and sings a "duet" with himself. However, the lyrics and melody at the end of the song are different from what he sang into the machine originally.