Other mistake: In the poppy field the tin man has hardly any of that artificial snow on him because the asbestos used didn't stick to the metal like real snow. (00:56:55)
Continuity mistake: Dorothy sloppily puts some oil in the shoulder joint and in front of the elbow of the Tin Man after he does his song and dance "If I only had a heart". In the next shot it's gone. (00:45:30)
Continuity mistake: When the Munchkins come out onto the Yellow Brick Road, one of them comes out of a sewer hatch on the yellow bricks. It's located on the ground in front of the first small white cottage with the thatched roof, right behind Dorothy's house. Throughout this scene, the dark hatch is visible whenever we see that specific location, such as when the Wicked Witch of the West asks, "Who killed my sister? Who killed the Witch of the East? Was it you?" but as Dorothy begins to "follow the yellow brick road", there is an overhead shot followed by a front shot and the dark hatch has disappeared.
Continuity mistake: The three Munchkins that represent the lollipop guild come out and start to dance. In the wide shot of them, they're standing apart from each other, but in the next closeup, they're standing right by each other. (00:27:00)
Continuity mistake: When they first see the Emerald City Dorothy is holding the basket on her left arm. In the next shot it's in front of her in both hands. (00:54:40)
Continuity mistake: After the Wicked Witch leaves, the burn spot on the ground where she throws the fire from the roof, disappears. (00:47:25)
Continuity mistake: There is a multicolored bag on the floor, to the left of Dorothy, when they're speaking to the Wizard and he says, "Anybody can have a brain" that was not there when she pulled the curtain open. (01:29:25)
Continuity mistake: When the talking trees throw their apples the Scarecrow walks over to the right side of the Yellow Brick Road as he picks some up. In the next shot he's on the other side of the road picking up apples that weren't there in the previous shot. (00:40:20)
Continuity mistake: Dorothy asks the Wicked Witch, "What are you gonna do with my dog? Give him back to me" and the basket with Toto in it changes from being in the monkey's left hand to his right between shots. (01:16:20)
Revealing mistake: After the Wicked Witch exits Munchkinland in a puff of red smoke and flames, you can briefly see sulphur marks left on the trapdoor. (00:31:00)
Continuity mistake: After she wakes up in the poppy field, Dorothy oils Tin Man's left arm which is stuck to his head. In the next shot his arm is lowered. (00:57:00)
Continuity mistake: As Dorothy and the Scarecrow dance off and sing, "We're off to see the Wizard" the flowers that were on the fencepost have been removed. The stepladder by the fence has also been moved without being touched. (00:38:55)
Suggested correction: The flowers are still there.
Continuity mistake: Aunt Em gives Dorothy a cruller and she takes a tiny nibble out of it. In the next shot it's half gone. (00:05:20)
Continuity mistake: At the end of the movie, when Dorothy is talking to her family, she wraps her right arm around Toto. The shot changes, and her left arm is suddenly around Toto. (01:40:50)
Revealing mistake: After the doorman tells the four they can't go see the wizard he returns back into the palace and you can see his shadow where it shouldn't be against the painted backdrop wall inside the door on the left. (01:07:25)
Continuity mistake: In the scene where Dorothy is confronted by the wicked witch and the lollipop disappears from her hands, notice how the flowers keep moving positions in her hands. (00:29:30)
Continuity mistake: When the witch leans over to claim the slippers, she goes really close to them and her broom is practically touching them. Not to mention she also casts a significant shadow on the wall of the house. In the close-up of the slippers disappearing, however, the witch's broom and her shadow are not in the shot although they should be. (00:29:50)
Visible crew/equipment: There's a second window on the left of Dorothy's bed and the shadow of the stage light can be seen on the wall behind it. (00:17:15)
Continuity mistake: In the beginning, the fortune teller tells Dorothy to close her eyes, and he takes a picture of Auntie Em out of her basket. In the closeup of the picture, his hand holding the picture is not visible, although it should be. (00:13:20)
Continuity mistake: As the Tin Man crowns the Cowardly Lion the flowers fall in one piece on the first step to their right. A few shots later we see this same spot again and even though no one has gone near them, the flowers have been moved. (01:06:15)
