Continuity mistake: In the scene where Maurice is sitting next to the fireplace, there is a picture with a silver frame on one of the walls. But after the Beast has burst into the room, there is a shot of the chair Maurice is in, and the picture is now in a gold frame.
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: In the very short scene where the Beast throws Marice into the machine and it carries him away, the front entrance of the castle is utterly different from normal. For instance, normally there are no stairs leading up to the castle, the statues on either sides of the doors are different, the walls next to the entrance are shaped differently, and so on.
Audio problem: When the horse comes galloping into the meadow, Belle cries "Phillipe" but her lips don't match what she's saying.
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.
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 Belle goes to open the door for Gaston, her chair is close to the carpet on the floor. Then when the shot returns to this area, the chair is much further from the carpet.