Continuity mistake: When Gaston and Le Fou approach the village on horseback, they watch Belle through a telescope. In the shot from behind, Le Fou has to stretch out to reach the telescope when Gaston passes it across and his fingers barely touch the end of it, but when the view changes to the front the horses are closer together and he is holding the telescope firmly in the middle.
Continuity mistake: In the opening number, Belle picks up a loaf of bread at the start and puts it in a bag around her waist. Later in the number it's not there. There's a deleted scene which explains the disappearance, but with that scene missing, the bread just disappears for no reason, hence it's a mistake.
Continuity mistake: In the opening song "Belle" - Belle exits her house wearing brown lace up boots. When she then helps the little girl to read, she is wearing espadrilles. When she leaves her house to sing the reprise "Madam, Gaston, can't you just see it" she is wearing espadrilles. Later when Phillipe the horse returns without her father, Maurice, Belle is wearing brown boots again and enters the castle wearing them. Then when she is with the beast and stood on the ladder choosing books - she has espadrilles on again. Her shoes alternate throughout the whole film.