Character mistake: While singing the "If I Were King" song, the Lion asks, "What makes the Sphinx the Seventh Wonder?" The Sphinx is not one of the Seven Wonders of the World; its neighbour the Great Pyramid of Giza is. Besides, how would the residents of Oz know about our Seven Wonders of the World? (01:07:00)
Suggested correction: There are many points in the movie where we know Dorothy and her friends are traveling, but we don't hear what they say, because we are focusing either on the Witch spying on them, or there is a cut where they've traveled some distance that we didn't see. Dorothy could have told her friends about the land she came from during that time, especially since the Scarecrow would curious about things he didn't know about. The Lion would have been witness to these conversations during the travel, and heard Dorothy talk about those things, and it's not impossible that Dorothy would have mentioned the Seven Wonders during that time. It would be completely in character for the Lion to afterwards get the "Seventh Wonder" wrong, since he only heard about it recently. It is a common mistake for anybody to get details wrong about something they've only just heard about, and it doesn't make it an error in the film itself for the Lion to be wrong about something.
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.
