Revealing mistake: The ship set up for the capsize scene is supposedly mid channel and heading for England when it is bombed by the Heinkel, but it is at anchor.
Revealing mistake: While Barnum and Phillip are singing "The Other Side" Phillip knocks over the first stool then steps on its side, and in this closeup we can see the extra two flat bars attached between the legs, for him to easily step on. We also see that the stool's seat is perfectly round in the closeup, but in previous and following shots, such as when Carlyle jumps off the bar then grabs his hat, one side of the seat has been cut to allow it to rest flat on the floor while on its side. Presumably, the closeup was digitally edited to make the seat appear round. (00:38:05)
Revealing mistake: The woman who died giving birth blinks as the doctor walks away. (00:13:55)
Revealing mistake: Back at his NAACP homebase, Marshall meets with the boss who is already sending him to deal with another case. In the close-up of the newspaper he's reading, check out between the actor's fingers. You can tell that half of the article, which begins in English, suddenly switches into Latin 'lorem ipsum' filler text. (00:06:20)
Revealing mistake: When Auggie is bringing the popcorn to Jack Will he is holding the popcorn at an angle that it should fall out but it doesn't, revealing that was just a prop.
Suggested correction: When Auggie sits down next to Jack, you see a piece of popcorn fly out the pot meaning it isn't a prop.
Revealing mistake: Addison is driving straight, but cars behind him are shown going around a curve. (Use of a green screen). (00:55:50)
Revealing mistake: When Mae is on the phone with her parents, there is a camera feed shown of the parents, and in the bottom right hand corner, a camera feed of Mae. When Mae is holding the phone, her hand is visibly seen shaking and readjusts the phone at numerous points, the camera feed of her shown on the phone remains completely still throughout the call. (01:13:05)
Revealing mistake: As the train approaches and stands in Brod Station, it becomes rather obvious that the smoke emitted by the steam locomotive is "painted in" by computer. It does not move or change shape as real smoke would. A shame, as the steam effects earlier in the film are very realistic.
Revealing mistake: At the Laramie Public Library, the bookshelves behind Charley and his Aunt Margy are obviously fake. The rows are diagonal but not parallel plus the end caps are almost vertical (not angled like the shelves are made to appear). Also, the middle and right side rows are too close together for anyone to be able to walk between and browse. (01:50:17)
Revealing mistake: One actor played the roles of the twins. At the mental hospital, there were subtle but noticeable differences between the way Derek's bangs were combed to the right (flatter with no loose ends sticking out) and he had a small section of hair raised near the back of his part. When Derek left as Tyler, he still had Tyler's more jagged bangs and no raised section of hair near the back of his part. It's against the odds that the twins would have the exact same facial hair/haircut on visiting day. (00:17:45 - 00:20:20)