Character mistake: When Buquet hangs over the scene, you can see Meg screaming along with three other dancers. Four shots later, Meg is still screaming, but the two girls who were to her right (on the left of the screen) are still dancing, as if they haven't seen Buquet yet. (01:05:10)
Character mistake: Mother Nature tells Snow Miser to let it snow in Southland, it should be Southtown. (00:39:56)
Character mistake: When Wallace and Davis start performing together, they show the newspaper "Variety" with five different headlines. Three of those papers have the same story, "Old Trooper Dies."
Character mistake: Chad actually steps on first base before the baseman has the ball. He was safe.
Character mistake: When Frenchie is the only person remaining in the soda shop a guardian comes on and starts singing a song. While he is singing the song (toward the end of his singing) all the girls scatteringly head back toward the stairs. While they are walking up, one of the girls trips over her high heels. It is clearly shown, she's toward the front going around the back of the seat Frenchie is sitting in, around the round thing.
Character mistake: When Dorothy and the others enter the Haunted forest, the sign reads "Witches Castle One Mile." "Witches" is plural. To be grammatically correct, it should have said "Witch's Castle," if one witch, or "Witches' Castle" if more than one.
Character mistake: In the beginning of the film, Oliver has been brought by Mr. and Mrs. Bumble to the Governor's door after asking for more to eat. Mrs. Bumble then sings, "They'll lay the blame on the one who named him," and as Mr. Bumble is responding, "O-li-ver", look at Oliver. He is completely spacing out and not in character at all - staring off into the distance and flicking his tongue in and out of his mouth.
Suggested correction: The character is in character, he is acting alarmed and concerned and regretting his choice to inform the governor. As seen https://youtu.be/nlJugdk4OGc.
Character mistake: At the beginning Sally follows Jack at the end of the Halloween celebration where he sings "Jack's Lament." She then goes off to gather more deadly nightshade. Look at Sally when she sits down. It is in front of a stone labeled "witch hazel" and "deadly nightshade" is seen next to it on the right. Yet, Sally pulls two pieces of witch hazel out of the ground, before a quick cut back to the lab where we see her putting it in a jar marked "nightshade".
Character mistake: The closing shot of a newspaper article shows the word "rumor", film is set in England where it's spelled "rumour".
Character mistake: When Dean Martin desribes his writer's block to Judy Holiday, she says that she keeps sharpening his Ticonderoga pencil until there's nothing left but the "Ti," but in fact what would be left on a little nib is the "ga."
Suggested correction: She said she would sharpen her pencil... to the "t."
You should watch the whole scene. She said she would sharpen it to the Ticondero, and then to the Ticond, and she keeps going until the "Ti" and "T" (where she pronounces the sound rather than the letter).
Character mistake: During the "Money by the Pound" song, towards the end, Doc sings, "Can't you hear that jingle jangle sound." Hoagie (Red Buttons) starts mouthing the "Can't" before he catches himself.
Character mistake: The movie opens with the infant Molly Brown in a basket being swept down a raging river. She crashes and crawls up on the bank. No one else is around. But when the grown-up Molly tells her "pa" that she's going to Denver, she says, "Thank you for pulling me out of the flood."
Character mistake: Dumplin' is looking through her aunt's belongings, and finds an old application form for the Miss Teen Bluebonnet pageant. The application has an August 1993 signature but marks Lucy's DOB as 5/5/79 with a stated age of 16: it does not add up, as she'd have been 14 instead. Granted, it's an application she never actually turned in and not an official document, but this does not justify the mistake in the context of the movie (not to mention that had she just been too young to participate, the point of the movie would be moot).
Character mistake: Both in the movie (and stage) versions, Mushnik makes a verbal mistake. Seymour shows Mushnik his new plant (Audrey II) for the very first time, but seconds later when the plant suddenly droops, Mushnik asks Seymour, "Why is it always wilting like that?" Always? He's just seen the plant! The line should be, "Why is it wilting like that?" Some smart stage directors of the play version have wised up and changed the line.
Character mistake: During the music number "Shuffle Off To Buffalo", two females are singing about the main couple while eating. The character on the right starts singing about the male having a shotgun to his "belly." She is supposed to say "tummy" and quickly corrects herself.
Suggested correction: Per Wikipedia, this error was intentional. "there is a single moment at the end of "Shuffle Off to Buffalo", when one word of the scripted lyrics, "belly", was changed to "tummy" presumedly to comply with the then weakly enforced Motion Picture Production Code of 1930. But in making the change, the filmmakers purposely drew attention to the censored word. As Ginger sings it, Una gestures to her and she changes the last word: "He did right by little Nellie, with a shotgun in his bel - - tummy.
Character mistake: When the coach is eating a sandwich in the locker room, there is a headline in the paper he's reading that says, "Diamond Backs rattle Timber Wolfs..." Diamondback is one word and the plural of wolf is wolves. (00:45:00)
Character mistake: Near the end of the movie, Charlotte says she doesn't have the strength to climb down into the crate. Two seconds later, she climbs down to comfort Wilbur, then climbs back up. Even if she couldn't go all the way to the crate, she was low enough that Wilbur could have carried her there himself.
Character mistake: Before the junk man drives away he calls Mr Coggins "Bill." The correct first name is George.
Character mistake: At the beginning of the movie, during "Provincial Life", we see a fat lady trying on a hat in a hat store. The sign over the window, in French, reads "Chapeau" (hat). The correct way to identify that store would have been "Chapeaux" (hats) or "Chapelier" (hatter).
Character mistake: Sarah after speaking to Sky when they come back from Havana and the thugs leave from playing the crap game she goes in the Mission she reaches for the light string to turn off the light she doesn't ever get the string in her hand but the light goes off.