Corrected entry: Even though he left production due to serious health problems, Buddy Ebsen actually does appear twice in movie in two different roles. First time he appears as Scarecrow (role for which he was originally cast) in first scenes with Dorothy. He is shown couple of times from behind. Second time he appears when Scarecrow, Tin Man and Lion come to Witch's castle to rescue Dorothy. He plays Tin Man in all shots which shows three heroes from behind, including shot of them marching into castle.
Corrected entry: Regarding the Tin Man: tin doesn't rust.
Corrected entry: Before Dorothy goes home, she says a long and tearful goodbye to the Scarecrow, Tin Man, and Lion. But originally she was going to fly off in a balloon with the Wizard, and just happened to jump out of the basket at the last second. Wouldn't she have already said her goodbyes before that? (Not that she wouldn't have said goodbye again, but the second time would have sounded a little different.)
Corrected entry: During one of the times the cast sings "We're off to see the Wizard" (either after they meet the Tin Man or the Cowardly Lion), as they begin to walk off, above the main characters there is visible the sillhouette of a crew member swinging an arm projected onto the backdrop from behind it.
Corrected entry: When The Scarecrow says that he can be released from the pole by 'Turning that nail', the pole holding him up is briefly shown - it's obvious that the pole goes up *inside* his jacket - therefore, he couldn't fall down & forward to be free of the pole; the best he could do is fall to the ground with a pole up the back of his shirt.
Corrected entry: When Aunt Em is taking the chicks out of the incubator and putting them in Uncle Henry's hat, you can see that she is just pretending and there is nothing in her hands. (00:02:35)
Corrected entry: In the scene where Dorothy starts at the beginning of the yellow brick road, which is a spiral, at her second revolution, you can see the Mayor in the scene to the right. As Dorothy gets near the low huts the scene switches. As she goes out of town, you see the Mayor again alongside the road on the right.