Factual error: The tiny missiles on the F16 are shown as being attached to some sort of flexible metal framework which bends and shifts as the plane moves along the ground. The F16 is a supersonic fighter - any such thing would be ripped clean off the wing at speed. The missiles carried by the F16 are attached to streamlined 'hard points' under the wing, or the wingtips themselves.
Continuity mistake: When Joan meets The Jewel for the first time in the room where Omar is holding him prisoner, Omar enters and greets Joan. As he leaves, the shot shows Joan with her back turned to Omar and Omar is heard off-camera saying Joan looks pale. How does Omar know how Joan looks if he doesn't see her, and there is no mirror on the side of the room where they are chatting?
Factual error: When Mike Douglas and Danny D. are trying to get into Omar's castle, they argue with Rashid. Rashid orders the guards to ready their weapons. As the guard to Rashid's left cocks his M-16, you can see that the bolt is already open, so the rifle didn't need to be cocked. Also, you can see into the receiver and there are no cartridges in there - and you should be able to see the one at the top of the magazine.
Revealing mistake: Joan gets splashed by Jack's water skis and goes inside the boat to watch a picture of the two of them on a tropical beach. The picture is blatantly fake: Jack's legs become invisible at one point, his skin looks wiggly were it's been pasted and no shadows match at all.
Continuity mistake: The train is about to enter a tunnel and a "bump" is heard. We immediately discover it's Ralph crashed against the side of a tunnel. Problem is the camel has magically managed to face the opposite way and, what's even more magical, it's now been safely tied up by a big fat rope.
Factual error: There is absolutely no way to fit three people in the cockpit of a single seat F16 fighter. There is no large empty space behind the pilot's seat - there is a bulkhead, and behind that a rather obtrusive jet engine. Even the two seater training version of the F16 cannot accommodate three people - there is no space behind either seat large enough for a third person, which this mockup has.