Continuity mistake: When Bill is first explaining Hamlet, Hobbs takes a seat in the front of the class. There is nothing on the desk but a few seconds later he has a paper and pencil.
Continuity mistake: In the ceremony scene toward the end of the movie when Brian Davis Jr is given his father's medal, when they begin showing his face among the other soldiers, he is standing several rows in. When the medal is presented to him, he is standing on the end of the row.
Other mistake: At the end in the ceremony staff sergeant Marie has sergeant first class stripes on her uniform.