Revealing mistake: When Sweet Chuck is sitting on a bench in the gym reading a paper, the big heavy comes down and sits next to him. Sweet Chuck goes flying up in the air a second before the big guy sits down.
Continuity mistake: At the end of the movie, the two balloons are in the air. As one of them goes down to land, we see a shot with balloons on the ground. In the next shot, one of them is still up and flying.
Continuity mistake: At the end of the movie when Tackleberry glides down the balloon you can see that the color/shape of the balloon changes between the closeup and far off shots.
Captain Harris: C.O.P. What a joke. You know what C.O.P. really stands for, Proctor?
Lieutenant Proctor: No, Sir. What?
Captain Harris: Collection of piss-ants.
[Lieutenant Proctor laughs.]
Captain Harris: That's not funny, Proctor.
Lieutenant Proctor: No, sir.
Captain Harris: This C.O.P. business is a bad idea and I'm going to prove it.
Lieutenant Proctor: Yes, sir.