Continuity mistake: When Belle opens the bedroom door for Mrs. Potts and Chip, in the close-up the bottom corners of the doors are aligned perfectly with the edge of the floor tiles, when both doors are closed. Later, when Cogsworth comes in to announce dinner, the bottom corners of the doors are above the center of the tile, when the doors are closed. This should never change. (00:30:15 - 00:31:20)
Continuity mistake: It is said that the magical rose will start to wither until the Beast's 21st birthday, and in the song 'Be our Guest', everyone sings "It's ten years since we've had anybody here, and we're obsessed". So that would make the Beast only 11 years old when he turned away the Enchantress that put a spell on him, however he is portrayed as being much older-looking.
Factual error: In the "No One's Great as Gaston" song (in the tavern) Gaston uses his blunderbuss to shoot three holes (three separate shots) in a barrel of beer. But a blunderbuss is a single-shot weapon. He would have to shoot, reload, shoot, reload, and shoot. (00:27:40)
Continuity mistake: When Lefou runs out of the castle, he is missing one shoe. In the next shot, outside the castle, if you look closely he has both shoes on.
Continuity mistake: Cogsworth's height as a human keeps changing in the final minute or so of the film. For instance, when he first transforms from a clock into a man, he comes up to about half of Lumiere's head, but when they argue, Cogsworth is taller than that. Then in the last shot, as it zooms out as Belle and the prince are dancing, he doesn't even come up to Lumiere's shoulders.
Continuity mistake: When the Beast briefly dies at the end of the film, before being turned human, Belle cries and lays down on his chest, with her head resting on his red cape and her hand clutching it. However when it cuts to a closeup, Belle's head is suddenly resting further down, on his white shirt, and she is clutching the shirt now too instead of the cape. (01:17:35)
Continuity mistake: When Maurice enters the castle, the bolts on the doors are golden. Later in this scene, the bolts change to black.
Continuity mistake: Chip the teacup has his chip in the right side of the cup. However in the scene when Belle and the Beast are eating porridge, the Beast slurps his porridge, getting it all over himself, and it then cuts to Mrs. Potts and Chip turning to look at Belle, however in this shot Chip's chip is on the left side of the cup. (00:51:25)
Continuity mistake: When Gaston climbs out of the muddy puddle, he storms off, and it shows Belle's house in a wideshot, with the stone walls surrounding the porch with nothing on them. Then it cuts to a closeup of Belle emerging from the door, but now there's a bucket of seed, and some chickens on the walls. (00:18:30)
Continuity mistake: At the very end, when all the objects change back into humans, the position of the roses on the walls in the background changes between shots. (01:23:25)
Continuity mistake: In the scene where the villagers try to take away Maurice, the position of the vines over the cellar doors changes between shots.
Continuity mistake: When Maurice first comes to the castle, there is no smoke from any of the chimneys, even though we later see that there is a fire inside.
Deliberate mistake: During the Gaston song in the tavern, Gaston is wearing a pull over shirt with no buttons in front. At one point in the song he rips open his shirt to show off the hair on his chest. The very next second, however, his shirt is back to normal. The shirt is not ripped or disheveled, and it is completely unscathed as if it had never been ripped open or torn apart.
Continuity mistake: Outside Belle's house there is a wishing well situated on the grass directly in front of the window and cellar doors, plainly seen in the initial shot of Belle leaving her home to go to town. However in the scene where Chip gets Maurices woodcutter going, as it hurtles towards the cellar doors in a wideshot, the wishing well has vanished!! (00:02:45 - 01:11:55)