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: In the scene where the Panthers are being introduced, the announcer states that one boy is "Walter 'The Hook' Coster", and another is "Frank 'The Razor' Schmidt". But in another scene, when one of them is batting, he says Frank Coster. Although they look exactly the same, he accidentally mixed the two names together. There is no Frank Coster. (01:12:50 - 01:19:15)
Character mistake: In the Air Force One scene, when lightning destroys one of the plane's engines, one of the pilots tells a co-pilot to inform Metropolis Airport that the president is on board the plane. The crew is unnecessarily repeating themselves: just a few moments before, they radioed in that "Air Force One" was on approach; the plane would only have that call sign if the president was on board.