Other mistake: When Michelle Pfieffer hands out menus for the restaurant in the class, they all read them out loud in English. Then when she takes Raul there, he says he can't read it because it's in French.
Continuity mistake: When Angela and her friend are dancing to the music, in the next shot you can see her walking past on the bottom right hand side of the screen, wearing different clothes too. (00:18:58 - 00:19:10)
Continuity mistake: In the scene where it's Michelle Pfeiffer's first day in the classroom, the student who calls her "White Bread" when she walks in goes from one shot where she's sitting in a chair wearing headphones to three quick shots later where she's suddenly standing up dancing without headphones, and then in the next split-second shot she's sitting down again and the girl next to her is wearing the headphones, and then the headphones are back on her head when Pfeiffer walks up to her and asks about Miss Shepard. (00:08:14 - 00:08:55)