Factual error: When the posse arrives at the mission, a horizontal jet stream can be seen during this scene. (01:00:00)
Revealing mistake: Although the film is set during the aftermath of the Mexican War (1848-50), the mountain vistas display some lovely radio towers and fire ranger stations.
Revealing mistake: In a scene where the canoes are shooting the rapids through a sheer cliff you can clearly see a stuntman climbing out of the water onto the rock.
Continuity mistake: After the opening sequence, Hylda Baker goes into her house carrying a natural straw shopping bag. When she appears inside the house, the bag has turned into a bright red patterned one.
Revealing mistake: In the early part of the chase scene, when the person hanging the banner swings into the pane of glass, you can actually see it start to shatter before he touches it.
Continuity mistake: When Giorgio leaves Robin and Nicholas' table during the breakfast scene at the hotel, Nicholas has his hands clasped together, but in the very next shot he has his arms crossed.
Revealing mistake: When Stan is in the safari park driving the bus with the monkey on the steering wheel the scene outside the bus is obviously background projection and at times it runs backwards giving the impression that the bus is in reverse when all the time it is going forwards.
Visible crew/equipment: Near the end of the chainsaw sequence, a crewmember's hand is visible on Krug's back.
Revealing mistake: When McDonald is in the tunnels and is called to pick up the phone, he picks up a red phone. It is a standard Bell TouchTone desk phone. To make the phone look more futuristic, there was no cord and it was disguised as a cordless phone. The port that the cord would plug into is covered by a piece of colored tape. This also can be seen in the operations center of Ape Control when the worker picks up the phone.
Continuity mistake: When Mr Bernard pulls Miss Banks' dress he throws it behind her. When she runs to her office she is holding the dress in her hand.
Visible crew/equipment: A boom mike is visible at the very end of the "What's My Perversion" segment.
Continuity mistake: Watch the bar scene about ten minutes from the start of the film. The barmaid is holding 2 pints, but note how the froth disappears when the shot changes as they are placed on the bar.
Continuity mistake: The protagonist is weilding his karate skills against the crooked cops in the final fight scene. One of his foes is wearing a white fishing cap. Superfly belts him and knocks of the cap, there is a cut and then the cap is on again. The cap is on and then off again twice more in the same fight scene.