Continuity: After Dorothy is awakened by the Tin Man's tears, she sits up and wipes her face with both hands. In the next shot, however, when Toto awakens, Dorothy is still sleeping because her hands and arms are still down.
Revealing mistakes: When the Red people are dancing in front of a camera at the Emerald City, there is a giant screen that shows the people dancing. A red woman goes in front of the people and does a dance, but her movement on the screen does not match the moves that she makes in front of the camera.
Boom mic visible: The shadow of a boom mic is visible on the door through which Aunt Emma walks as she and Dorothy enter the dining room to collect the dirty dishes from the table.
Continuity: During the dance scene after Evillene meets her demise, the sweat stains under Dorothy's arms appear and disappear.
Continuity: In the subway scene, the Peddler has on white tennis shoes in the close up, but in the wide shot, he has on dark-colored boots.
Miscellaneous: In the scene after Evillene, the Wicked Witch of the West, is killed, there is a wide shot of the dancers that starts to dolly. During the camera movement, the shot starts to shake.
Revealing mistakes: In the scene just after the Cowardly Lion joins the group, all four of them do a dance that begins with them walking over some taxis, and one of them clearly bounces somewhat, revealing that they're inflatables.
Crew or equipment visible: During the wide shot in "Slide Some Oil to Me" when Nipsy Russell is dancing in front of the mirrors, there's a large hole in the canvas behind him. You can see a camera through the hole, and a couple of times, you can see a reflection of him dancing in the camera lens.
Factual errors: Despite being an all-Black universe, all of the quotations that the Scarecrow reads are from famous people from Western Civilization instead of writers of African origin, and the Cowardly Lion calls on Zeus, a Greek god to which people of African origin have no connection, instead of African gods such as Shango or Olorun. Because the main creative talents behind the film were of European origin, it is more than probable that they had no knowledge of Afrocentric writers and African belief systems.
Factual errors: The Wiz, when discovered, says that he was an alderman in Atlantic City. Atlantic City does not and has never had aldermen. It had a commission form of government, and it has a mayor-council form of government.
Errors in geography: Aunt Emma comments that Dorothy has never been south of 125th Street in the Manhattan neighborhood of Harlem. However, Dorothy later gives her address as being on Prospect Place, which is in Brooklyn, miles southeast of Harlem.
Continuity: After the sprinklers have turned off, everyone is suddenly dry.