Toy Soldiers (1991)

Revealing mistake: At the beginning of the film when a Judge is thrown out of the airplane, you can see a parachute is attached to him.

Continuity mistake: When Luis Cali is strapping Billy Tepper in the office, he is standing in front of the desk, while Billy is standing on the opposite side. Billy is facing him (while bending forward), so the strapping marks on Billy's back should be vertical, from head to butt, or at least diagonal. But later when the guys are cleaning the wounds, the marks are horizontal.

Visible crew/equipment: In the scene where the headmaster's furniture is outside, the shadow of the camera can be seen. As the camera moves into a high-angle shot, the shadow grows bigger.

William "Billy" Tepper: All right, what now?
Derek 'Yogurt': All right, all right. Very, very carefully take the red chip out of the receiver.
William "Billy" Tepper: There is no red chip.
Derek 'Yogurt': There must be.
William "Billy" Tepper: Well I'm sorry, there isn't. There's a blue chip the same size as the red chip, but there's no red chip.
Derek 'Yogurt': That must be it then.
William "Billy" Tepper: Well is it, or isn't it?
Derek 'Yogurt': I don't know.

Dean Parker: Do you think you're the first kid to put liquor in mouthwash bottles? It was done in my day. I may have even done it myself.

Dean Parker: I'm not going to expel you. Three schools have done that and it's obviously done nothing for your character... I'm going to do much worse. I am going to keep you here until you graduate. It'll probably take years at this rate.
William "Billy" Tepper: I might wear you out before then.
Dean Parker: Oh don't you worry about wearing me out. I'm going to wear you out.