Continuity mistake: There are two continuity mistakes when Don Lockwood makes his escape from his fans, and jumps onto the passing trolley. He climbs to the trolley roof and walks along the roof to the back of the trolley, when he jumps off to land in Kathy's car. However, in the next shot he's jumped off the front of the trolley, not the back. Also, in the distant shot, Kathy jumps as he lands in her car, but when the shot changes to a close-up, she's calm and then jumps a second later.
Continuity mistake: In the scene where Don Lockwood is dueling in "The Royal Rascal" at the beginning of the movie, when Don opens the balcony door and the other dueller comes after him, Don flips him over the balcony and he splashes into a puddle. Meanwhile, two guys come out after Don. The next scene, one guy is lying on the balcony, Don jumps over the balcony landing on his back, and there is no puddle, no guy lying on the ground, but a bushy garden instead. (00:11:55)
Visible crew/equipment: During the Broadway Melody, the shadow of the hanging boom mic becomes visible. This happens during the sequence filmed in the large sound stage. Kelly is dancing with a woman with a long fabric flowing behind her. The shadow is on the right side.
Suggested correction: I can see no shadow at any point in this scene. Could you provide a time stamp or screen capture? Besides, there is no spoken dialog or even any natural sound in the scene. Why would they be using a boom mike?
It's on the right, center side of the screen when the lady with the long flowing dress is further away and the shot cranes up. This is a musical number, Kelly is singing. They would still use a microphone.
Are you talking about the fantasy sequence between Kelley and Cyd Charisse? If you mean the faint shadow at 1:25:18, that is a shadow from the flowing cloth. And no, they would not be using a microphone. 1) There is no singing in that sequence. 2) In musicals at the time, all singing was pre-recorded and the actors lip-synced to a playback on stage.
Continuity mistake: When Cosmo and Don are doing the violin routine, Cosmo's violin bow string comes loose in one shot and then all of a sudden is fixed in the next. (00:06:45)
Other mistake: Don, Lena, and crew have a nearly impossible time when starting to shoot "The Dueling Cavalier" as a talkie. But, before that, we see a different group shooting the complex, Zigfeld-esque "Beautiful Girl" number for another picture with no problems at all.
