Continuity mistake: During the chase where Larry's Charger knocks a police car in the river, the '69 Charger becomes a '68 Charger in one shot, as seen from the front. The '68 has a different grille than the '69 models. (01:09:40)
Revealing mistake: When the Charger hits the red truck, the truck turns over with the assistance of a 'pipe cannon' (note the sudden eruption of white smoke from under the truck). This device is like a large gun, pointed down that fires a cylindrical wooden 'bullet' at the ground, and the pressure behind it forces one side of the truck upward, causing the flip. Evidence of its use is seen when the passing cop drives away and in the street is a perfectly circular 'dent' in the asphalt with a burn mark surrounding it. (01:12:50 - 01:16:20)
Suggested correction: A cannon roll uses a large device, usually a metal pipe that is pointed down, but it does not fire a "bullet" wooden or otherwise. It is just the force of the explosive charge focused downwards that causes the cars to roll over.
A cannon roll shoots out a wooden log to flip a vehicle, it's not just shooting out air.
This is just nonsense, a wooden log would be too dangerous to use, would be highly conspicuous on screen, and would take up room inside a vehicle.
Then you don't know how they use to do car stunts. It does take up room, but even modern methods do. Cars have to be modified heavily and of course it's dangerous, they're flipping a car with a driver inside. Film makers do everything they can to avoid the stunt car from being detected (just the same way they do everything that can to avoid a dummy being detected). Here's a article that talks about car stunts before the pneumatic flipper. Https://www.caranddriver.com/news/a15364815/the-inside-story-of-the-academy-award-winning-car-inversion-device-or-how-to-flip-cars-real-good/.
Bishop73 is right. For example, from Raiders of the Lost Ark: https://www.moviemistakes.com/picture6238.
Continuity mistake: In most shots, Larry is wearing tan driving gloves, but in several shots from the back seat looking forward, the stunt driver has bare hands. This is most obvious during the chase that ends with a police car crashing through a billboard. (00:57:30)
Continuity mistake: After trying to ditch Mary at the general store, the blue Impala is chased by two cops in a patrol car. Shots looking rearward from the Impala's backseat at the police car show only two of its headlights are on, but shots showing Larry's face show the police car over his shoulder with all four lights on. This goes back and forth for several shots. (00:44:15)
Visible crew/equipment: When Deke is changing the tire on the Charger, you can see the camera man and light rigging reflected in the door of the car as the camera pans to Mary laying down on the trunk. (01:14:15)
Continuity mistake: When the blue Impala is shown early in the film from the rear, it has a crooked rear license plate, intact tail lights and trim, a 'Chevrolet' emblem at the right side of the trunk lid, and a pair of square stickers (red, blue) at the right end of the rear bumper. As it enters the flea market, the stickers are gone and the trunklid is dented. As it approaches the drawbridge, the plate is straight, a piece of trim is missing, the exhaust pipe changes, a tail light is broken, the 'Chevrolet' emblem and stickers are gone, and the dented trunk lid is fixed. From shot to shot, these conditions swap back and forth repeatedly. (00:19:10 - 00:46:30)
Visible crew/equipment: As the Charger races toward the railroad tracks, the view from above and behind the car shows a cable is pulling the car forward. The cable runs under the tracks (note the discolored pavement that crosses the tracks), then the cable emerges on the other side and turns left around a horizontal pulley. The cable disappears to the left where an off-screen truck is driving further to the left, pulling the car. (01:31:00)
Suggested correction: Actually the cable was attached to the train locomotive itself. That way they were able to measure the cable out that the car would be in the right place to be hit, without dealing with timing issues of getting two independent vehicles to be at the same place at the same time.
Continuity mistake: In some scenes the Charger has emblems on the rear roof pillars that say 'Charger' but in others, there are no emblems there. This is very obvious just before and after the crash with the red truck (before hitting, there are none; stopping, they are back; crawling away, they are gone again). (01:12:30)
Continuity mistake: While at the pool hall, Mary indicates that the sign in the window describes Larry perfectly. A close-up shows it reads 'Out To Lunch', but the next wide shot shows it reads 'We're Closed'. (01:01:45)
Continuity mistake: As the '69 Charger turns onto a dirt siding to avoid a police car that approaches from the left, a side shot of the car shows it is suddenly a '68 Charger driving alongside the police car. The round tail lights are quite obvious, as are the missing square side marker lights of a '69 model. (01:09:30)
Continuity mistake: As the Impala approaches the drawbridge, the sun is on the right side of the car for most shots, but when the camera is behind the car looking at its tail, the sun is on the car's left side. (00:46:15)
Continuity mistake: As the Charger emerges from the groves after repairs, it is spotted by the cop in the modified police car. The close-up of the cop beginning to smile shows that the insignia on the car door has only black outlines on the white door, yet all the shots after show it is properly filled in with gold. (01:19:20)
Continuity mistake: The very first shot of the Dodge Charger shows it parked at the flea market. The car is shown with a crushed front valance, a rusty metal framework added below and behind the valance, and a base-model grille. When the car starts and drives away, the valance is perfect, the rusty frame is gone, and the grille now has an 'R/T' emblem. Two different cars were filmed on different days and the shots don't match up. (00:51:30 - 00:55:00)
Continuity mistake: At the end of an argument, Mary turns to bite Larry's shoulder. As she turns, the view out the side and rear of the car is of a wire fence surrounding an open, golden field. But the moment of her actually biting Larry has a totally black background- possibly shot while the car was stationary with a tarp behind it. (00:29:00)
Continuity mistake: When the Charger emerges from the groves after repairs, it is chased by the 'Hot Rod' police car. Close-ups of the policeman show he is wearing black gloves, but shots from the Charger, looking rearward show a very obvious stuntman who is driving barehanded. (01:19:55)
Continuity mistake: When the Charger turns off the paved road onto a dirt siding, it does so to avoid the cop approaching from the left on the side street. As the cop reaches the end of that street, he turns left to race alongside the Charger which is higher up on the dirt path. In the shot from the rear when the cop is turning, we see that he is already beyond the telephone poles that stand between the paved and dirt roads. When the shot changes to running alongside the police car, looking upward at the Charger, a telephone pole magically passes between the cars. Obviously, they started this shot further back. (01:09:30)
Visible crew/equipment: After the billboard crash, Larry is shown from his left side as he drives. In his glasses there is a reflection showing the two large lights attached to the vehicle in front of his car that are lighting him. (00:58:35)
Continuity mistake: When the Charger parks at the bar/pool hall, the car's rear panel displays an 'R/T' emblem. But as they fill up with fuel minutes later, the 'basic' Charger script and logo replace the R/T emblem seen earlier. (01:00:35 - 01:07:10)
Visible crew/equipment: After getting out of the car to go inside the bar / pool hall, you can see a boom microphone in the upper left corner hovering above and following Deke. (01:01:05)
Visible crew/equipment: When the Charger hits the train, the shot from above and behind ends with the rear window shattering due to a very obvious mortar blast at the left/lower corner of the glass, which fires a white gaseous stream upward. It's seen again in slow motion from the side in the next shot as well (at the right side of the shot). (01:31:00)
