Continuity mistake: At the start of the quicksand scene, Campanella is carrying his jacket over his shoulder in the initial shot but not in the next one. (01:01:21)
Continuity mistake: In the scene where Martin Short is in the clinic, he is talking to a fellow patient. The Spanish patient offers him a cigarette and while they are both smoking Danny Glover walks in. While Short and Glover are conversing, there is a shot of the Spaniard in the background smoking. Then the next shot (less than a second later) the Spaniard is lying down with no cigarette.
Continuity mistake: When the car falls off the cliff, which is supposed to be in the middle of the jungle, you can see the paved road and power lines when the car hits the bottom. (01:26:13)
Continuity mistake: When Proctor shows Campanella the traumatized patient, he is holding a Spanish dictionary on one hand. In the next shot, he's holding it with both hands.