Near the end in Arnold's as Fonz is talking to Richie, Fonz has both feet on the floor. The next shot he has one foot on a booth seat.
Richie places the weapon on his shoulder before the ROTC commander calls out, "Right shoulder, arms!"
The flag in the courtroom has 50 stars instead of the period-correct 48.
In the opening scene on the parade ground, in the background you can see a white 70s era hatchback.
In the opening scene on the parade ground, dry California mountains can be clearly seen in the background. There are no mountains in Milwaukee.