Character mistake: In the beginning of the movie everyone shows up on Monday. When Rosenberg is taking attendance he mispronounces the girl's name. She corrects him and he says yesterday and the day before it was something else. That would mean they came to school Sunday and Saturday.
Teachers (1984)
1 character mistake - chronological order
Directed by: Arthur Hiller
Starring: Nick Nolte, JoBeth Williams, Judd Hirsch, Ralph Macchio
Continuity mistake: Alex comes to work very hungover. He proceeds to spill coffee on his shirt twice. He then talks with Lisa in his classroom and now the shirt is clean.
Dr. Donna Burke: We, the board members present, think that you should tender your resignation.
Alex Jurel: My resignation? What for?
Dr. Donna Burke: Because, Mr. Jurel, no-one here wants to go through the pain of firing you.