Revealing mistake: At the end when the police officer crashes through the window of the pet store and all the dogs are licking him, it is extremely obvious that it is short piece of footage being rewound and played over and over again to extend the length of the shot.
Revealing mistake: Sylvester is shown in his car chasing after Finch and Hawthorne in their rental car to try to get them to stop. There are about five shots during this sequence that show the two cars side-by-side in the foreground of shot. In these shots, it is apparent that the cars are positioned on a fake background and not actually driving. This is especially noticeable as they are shown driving on a bumpy road, but during these specific shots, the cars appear completely still, with no signs of vibrating or bumping up and down. (01:51:53)
Revealing mistake: After getting out of the river, Meyer hitches a ride with a random driver who stops for him. There is a shot of the car beginning to drive off, and after they have driven off, a helicopter emerges from the field in the background to follow them. Just after the car exits the shot, and just before the helicopter emerges from the field, a visible edit can be seen onscreen revealing that these were two separate shots edited together. (01:45:45)
Revealing mistake: During the whole movie any time someone is driving, the driver turns either way too much or not enough for the turn they are on. Even when they are driving straight, they turn the wheel as if they are going back and forth on the road in both lanes.
Plot hole: In the beginning of the movie, all of the cars turn to the left to head south. However, the map at the police station indicates that they had to turn to the right to go south.
Revealing mistake: In the chase scene, Milton Berle and Terry Thomas are actually driving two different blue '61 Chevrolets. Initially, they are in a rare Super Sport as evidenced by the crossed flags emblem on the rear seat speaker cover. Fortunately, the car they eventually crashed was the less desireable non-SS version (i.e. no crossed flags emblem present). (01:40:05 - 01:47:25)
Plot hole: The police are kept aware of the status of everyone going after the money, by having helicopters follow them and monitoring what they are up to from above. However, they seem to be fully aware that the Crumps are locked in the basement of the hardware store, something that would be fully out of their reach. Even if they watched the Crumps go into the hardware store, they would have no view of what was going on inside the store, so there would have been no way for them to know if they went into the basement or if they got locked in the basement. Also, later on in the movie, the police are told that the Crumps set a fire in the basement, then set off fireworks, but they still didn't get out. Something that would have been impossible for the authorities to know if they were reporting from outside the store. (01:14:50 - 01:42:15)
Continuity mistake: When the Crumps, Meyer, Ding and Benjy are in the taxicab just after leaving the park, Meyer looks out the back window to notice Culpeper driving in the opposite direction, so he yells "Hold it" to the driver. The driver then starts to turn towards the right so that he can park on the sidewalk. Whilst the driver is saying "Can you see him", the taxicab is in the middle of pulling over and is still driving. It then cuts to a shot of Culpeper driving, and towards the right hand side of shot, in the background we can see that the two taxicabs have fully stopped. (02:22:03)
Continuity mistake: When Ding and Benjy are in the taxicab on their way to the park, just after they see the Crumps in the taxicab in front, they tell the driver to pass the cab in front and that they want to get there in a hurry. At this moment, Ding is shown sitting inside the car. But in the next shot, when the two cabs are shown from outside, Ding's arm is suddenly hanging outside the window. (02:01:58)
Revealing mistake: When Mrs. Marcus walks into the hospital room to shout at the men, she is shown slipping after stepping on a banana peel. A closer look will show that she reacts to slipping on the banana peel and begins to fall backwards a split-second before she actually steps on it. (02:40:12)
Continuity mistake: When Melville is launched from the ladder and down through the stairs in the apartment building, he is shown landing in a gap between the stairs. In the first shot, he is shown putting his hand on the bottom step of the stairs. A closer shot of Melville is then shown where his hand is now placed on the second step. (02:36:08)
Revealing mistake: During the chase scene where the two taxicabs are chasing after Culpeper, the chase is shown going into a street. There is a shot shown from behind the three vehicles where they drive around a broken down car parked in the middle of the street. A man can be seen climbing onto the back of the car and can then be seen momentarily looking at the camera, presumably to avoid coming into contact with the car that is filming the chase scene. (02:27:57)
Continuity mistake: Just after Culpeper flees from the garage he attempted to hide his car in, the others get back into the two taxicabs. As they do this, Culpeper's accomplice Jimmy is shown putting his left on the taxicab in front and begins pulling his hand on the cab just as the shot ends. The camera then changes angles and his left hand is now shown pointing towards the right. Something he was not doing at the end of the previous shot. (02:24:34)
Visible crew/equipment: When Culpeper attempts to hide his car in the garage, the two taxicabs catch up with him, prompting Culpeper to drive away. In the shot of Culpeper driving out of the garage and away from the others, the camera crew can be seen reflected on the side of his car. (02:24:20)
Continuity mistake: When everyone gets back into the taxicabs after discovering that Culpeper has driven off with the money, the area that the two cabs are positioned in is shadowed, but as the cabs begin to drive in the following shot, the same area is now covered in sunlight. (02:22:35)
Continuity mistake: When Culpeper is about to get into his car before leaving the station, he looks back at the police station for a brief moment. In the first shot, his left hand is shown touching the right hand side of the window frame. But in the next shot, where the cop says "What's the matter, Chief", his left hand is now shown the bottom of the window frame. Then it is back to being alongside the window frame in the next shot. (01:55:52)
Continuity mistake: When Ding and Benjy are on the verge of landing, just as Ding says "Put on the brakes" and Benjy asks "Where are they", Ding is shown putting his right hand on a couple of levers. When the shot cuts, his right hand is suddenly pointing towards a restaurant. (01:58:56)