Other mistake: In the opening scene on the airplane, one of the men tells Lt. Cable, "The captain wants to know if you'd like to sit up in the cockpit with him?" Buzz Adams, the "captain" referenced in this line, is only a lieutenant. Admittedly, "captain" is a standard aviation term for the pilot of an aircraft, but it would be unlikely to be used in this situation, since the term has a specific military meaning.
Factual error: After Berry and one of the Country Bears get in the bus to find the others, they show a scene with the bus going along a road and Berry leans out the window. Here you can see the side of the bus is spick 'n' span clean. Then, later, the bus is as dirty as it was when it left the shack, very noticeable at the start of the carwash scene.
Continuity mistake: In the gala scene, Zeppo explains that Groucho is always on time and will arrive at exactly ten o'clock. Everyone starts singing the first big musical number, "When the Clock on the Wall Strikes Ten." There is even a shot of a clock set to ten. In the middle of the song, the clock strikes... six.
Other mistake: When the Aggies are in the locker room after the football game, they are all getting undressed and showering. This is happening right after the game yet none of them have a spot of dirt on their nice white uniform pants. (00:59:50)
Continuity mistake: When Tiger and Fievel are doing their musical piece, Tiger wipes off the mirror and they appear the same size. When he lays out in front of the mirror, singing the line "We'll be there to pick each other off the floor", he places his head next to the cage bottom, still laying on the floor between them. In the mirror, however, that cage bottom is not reflected at all. (00:57:30)
Visible crew/equipment: When Comicus and his entourage are on the road to Judea, the tire tracks of the vehicle carrying the camera are blatantly clear in the lower part of the picture.
Continuity mistake: When Wilbur is meeting Charlotte's three daughters in the barn entrance, the medal that the farmer hung there keeps appearing and disappearing between shots, though the duration of the scene.
Continuity mistake: During "Eyesight to the Blind," The Preacher's guitar changes from a red Les Paul to a black Stratocaster. It's not blatantly obvious, but easy enough to spot without slow-mo. (00:26:33 - 00:30:02)
Continuity mistake: When Francis Fryer throws the cowboy he loses the scarf in his hand but when the camera angle changes he has it again.
Continuity mistake: During "Easy To Be Hard" a redheaded woman disappears and reappears on a park bench.
Factual error: During the song where Mowgli and Balo are dancing together with other animals, there are several hippopotamus also dancing. This is impossible, as hippopotamus are native to Africa, and the movie is set in India.
Factual error: When they show the Nelson Eddy song 'I Love You', the set/movie shown is Rose-Marie. But that number is from Rosalie not Rose-Marie. Two totally different movies - one set in West Point not with the Canadian Mounties. There are no Cole Porter songs in Rose-Marie, likewise there are no Mounties in Rosalie. Rose-Marie's music was by Harbach / Hammerstein II / Friml / Stothart. (01:09:25)
Other mistake: In Gene Kelly's 'Singing in the Rain' sequence, the taps he makes do not match up with the actual movements of his feet - they are much more complicated than the steps he makes. Since one can't tap dance in wet loafers, Kelly had to do the dance in the studio, and the taps were added into the picture. He apparently got a little overzealous.
Revealing mistake: The wires holding up Jacob Marley's floating lock box and chains are visible. (00:32:10)
Continuity mistake: When Ellen is getting up from the table after arguing with Jill, she takes her purse off the table with her right hand. In the next shot, she's shown dragging her purse across the table with her left hand.
Continuity mistake: When Bill tells Selma he has no money, her hair changes from tied back, to down numerous times between cuts.
Continuity mistake: When Lou is finally convinced that he won't get hurt being the umpire in the "Hit The Umpire" game, he runs to take his place then stops in front of the batter. As Lou runs to take his place he isn't wearing a baseball cap, nor is he holding one in his hands, but in the next shot, when he gets hit in the head by the batter, one has mysteriously appeared on his head.
Continuity mistake: Adelaide performs her first number and finds Nathan in her dressing room. There is a pink robe draped over the partition. Placement of this robe changes during the scene without being touched. (00:49:45 - 00:50:30)
Continuity mistake: In the penultimate scene when Susan has just gotten off the train and is running to Ned Trent, you see her fall over flat on her face and then sit up. Cut to the close up where Ned has also fallen over, Susan is flat on her face again. (01:36:00)
Other mistake: When Captain Spaulding first arrives near the beginning at the movie, he takes his hat off twice.