Revealing mistake: When the elephants are making fun of Dumbo in the train caboose, Dumbo's mother pulls a pin which causes the stall door above the other elephants to fall. When the door bounces back up, you can see that the animators forgot to draw the elephants' heads and trunks and only their bodies are visible.
Continuity mistake: Angelica has flowers on her dress. During the wedding, they disappear and reappear between shots.
Continuity mistake: During "Eyesight to the Blind," The Preacher's guitar changes from a red Les Paul to a black Stratocaster. It's not blatantly obvious, but easy enough to spot without slow-mo. (00:26:33 - 00:30:02)
Continuity mistake: When Jean Valjean is telling Marius that he is leaving and who he is, a large armoire appears behind Marius and then disappears in the next shot. (02:15:20)
Revealing mistake: The film was rushed to theaters, leaving a few mistakes which Universal fixed. In the original cut, toward the end, Judi Dench's human hand is visible, complete with her wedding ring. This was fixed for the re-release.
Continuity mistake: While Eddie performs "Hot Patootie", he's seated on the motorcycle with Columbia for a bit, and when Eddie stands up he's holding the mic in his left hand, but as he walks up the steps it's in his right hand, then next shot when he's facing Frank-N-Furter the mic is in Eddie's left hand, and next shot it's back to his right hand again.
Continuity mistake: When the Dowager Empress is walking towards the door and says the cinnamon smell is from an oil, her reflection in the mirror exactly matches her movements, including when she turns, when it should show a mirror image. Note the blue sash is on the same side in both. A quick reflection of Anastasia's head just before when she says "I just want to know who I am" has the same problem. After they sit the reflections appears to be right. (01:09:40)
Continuity mistake: After Jack is blown out of the sky and is lying in the graveyard, he has several grey smudges on his face from the explosion. But in the very next shot, a bird's eye view of Jack lying across the angel, the smudges have disappeared. (00:59:10)
Continuity mistake: When Mary reads the measuring tape after measuring herself the message reads up and down (as shown to the audience), but then the camera shows Mary reading it side to side.
Revealing mistake: During the "Outfox the Fox" number when Hawkins "cuts" the copies of himself in half, the copies are obviously all grown men, which then obviously become little people standing on each others' shoulders; it's easy to tell where the cloak hems of the little people on top end. (00:09:00)
Other mistake: At the very beginning, when the lights rise above the cast you can see they're all equally spaced out and the light has the same brightness for each character. At the end of the song, the camera shoots to the back filming everyone from behind, note Mark, he's crammed in the corner next to Angel with out the same amount of space originally he started with and his light is very dim compared to the seven others. (00:02:45)
Visible crew/equipment: When Mitchie is at her locker at school, Sierra walks up to her and there is a white chalk marker line on the floor that she promptly steps on to speak to her friend.
Continuity mistake: Jennifer Aniston is backstage at one of the beauty pageant contests she is a special guest for. They hand her the envelope with the winner. She is fixing her hair with the left hand, which turns into the right hand in the reverse shot.
Continuity mistake: When Don is caught by the cop while splashing around in the puddle during "Singin' in the Rain", Don's left hand jumps from his umbrella handle to down at his side between shots.
Continuity mistake: When the movie ends and Aladdin exits the palace the passers by behind are not continuous between shots, check the woman in a salmon coloured sari, for example, who walks by twice.
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: 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: A spider web drawn by a girl near the fence disappears.
Visible crew/equipment: In the scene where Kermit meets Fozzie, when Fozzie tosses the rubber chicken over his shoulder you can see Frank Oz's arm and where the glove ends.
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.