Continuity mistake: Nicholas Hammond (Friedrich) was not a natural blond. The first scene to be shot involving him was the "My Favourite Things" scene and you can see that his hair is pale auburn. After this scene was shot, the directors thought that he would look better if his hair were lighter, so they applied an early form of bleaching agent to his hair. In scenes which were shot after this (notably the children's first entrance to meet Maria which occurs before the "Favourite Things" scene) his hair is very, VERY blond, almost white. In fact, if you scrutinise his hair closely throughout the film, it is a different colour in practically every scene, depending on when the scene was shot and how much of the bleaching agent had been applied.
Continuity mistake: A spider web drawn by a girl near the fence disappears.
Continuity mistake: When Elton and John Reid are kissing in the cupboard John's hand keeps changing between shots. John's hand rolls down Elton's chest, then the next shot it's on Elton's cheek, the next shot he takes his hand away, then the next shot his hand is by Elton's mouth and Elton pretends to bite John's thumb.
Continuity mistake: When Merryweather makes the dress blue a second time, it starts off on a ribbon that wraps itself around the dress waistline. The ribbon doesn't make it onto the completed dress.
Suggested correction: Hardly a mistake, since they're using magic and the dress changes multiple times.
Continuity mistake: After Capt. Hook drops Jane into the water and Pan dives in to save her from the octopus, he begins to gloat. Looking at his scabbard there is no sword because he threw it at the mast to cut the rope. Next thing you know, the sword is back in the scabbard.
Continuity mistake: When Shane tries to get Mitchie to go picnicking with him, Mitchie turns her body to face him. In the next shot, she hasn't turned at all.
Continuity mistake: When Lil gets up to pick up the carafe, her glass is, obviously, almost empty. The glass is refilled two shots later, before she pours (which happens later). (00:08:40)
Continuity mistake: When Mr Bumble and the female workhouse employee take Oliver to the Governor's office, Bumble raises his hand and knocks on the door. The woman sings "They will lay the blame on the one who named him", prompting Bumble to move his hand away from the door, toward his face, as if he's about to place it over his mouth in concern. The camera then changes angles and Bumble's hand is suddenly lowered and nowhere near his face.
Revealing mistake: In the final shot of the film the model makers neglected to include the antenna at the top of the Eiffel Tower, seen previously on the real tower in the establishing shot of Paris. (02:31:20 - 02:37:10)
Visible crew/equipment: In the scene when Kermit confronts Doc Hopper he comes walking out of the bar. If you look at the top of Kermit's legs when he walks out, two pair of hands can be seen moving the legs.
Continuity mistake: When Jiminy shows us Geppetto's place, there's a toy soldier next to a camel. From the opposite angle the soldier is now a giraffe. Seconds later, after he warms himself up, he looks at the window and there're two giraffes on the left, while the toys on the right are totally different.
Continuity mistake: When Pocahontas sees John Smith for the first time, John is climbing up a cliff face and then a tree. You can see his musket strapped to his back as he's climbing. But after he tells Thomas he's getting a better look and then is shown in the tree, his gun has vanished.
Continuity mistake: When the doctor on the right walks in the operating room he puts a glove on. A shot later it's off and he's putting it again.
Other mistake: During the opening traffic jam dance scene, many of the cars have dented roofs and hoods from previous takes.