Continuity mistake: As Boss Hogg rolls backwards over his desk as Uncle Jesse punches him; watch the items on the desk as he lands on the floor. In the next shot the items are in different positions and some items are different. (00:49:40)
Revealing mistake: When Uncle Jesse punches Boss Hogg (Burt Reynolds) it is clearly not his, but a stuntman, in the shot from behind as he rolls back over his desk. (00:49:40)
Visible crew/equipment: When the campus police pull the Dukes over, in the shot of the police walking over to their car you can see the camera shadow on General Lee, just ahead of the policeman. (00:50:30)
Continuity mistake: When the campus policeman is talking to Bo through his car window, the policeman has his hands resting on the windowframe. From every shot change, the policeman's left hand constantly disappears then reappears from the frame. (00:50:35)
Continuity mistake: When Bo pulls General Lee up outside the University, it is parked at an angle from the curb. After they leave the university and return to the car it is parked much more straight. (00:51:05 - 00:55:45)
Continuity mistake: After the black soot splurts all over Bo and Luke, the amount on their shirts and faces differs through the scene. (00:54:20)
Visible crew/equipment: When Bo and Luke are talking to the geology student, and Katy Johnson pops in the door to hurry them up, just after she dances for Luke in the doorway, the camera pans back to Bo and Luke. Just then, a boom mic pops into frame at the top of the screen, then quickly moves back out. (00:55:00)
Continuity mistake: When the gang walk over to General Lee, Luke spots them and tells Luke to roll his window up. He rolls it up an inch before one of the gang stops him. In the next shot no window is visibly rolled up. In the next shot the inch of window is back again. (00:56:20)
Continuity mistake: Boss Hogg lights a cigar when he is talking to the Duke's through the prison cell bars. In one shot it is smoking heavily, but in the next shot no smoke is visible. In some shots it seems to be unlit as well, but is fully alight in other shots. (00:59:20)
Continuity mistake: When the two cops are checking Daisy's car undercarriage for her, they bend down to the floor to check. However when they both stand up, they have suddenly switched places. (01:02:45)
Revealing mistake: When Bo lands General Lee on the highway after going up the ramp, in one frontal shot you can see the front left wheel of the car come apart completely and break its suspension. But the car is unaffected and continues to drive. (01:07:45)
Continuity mistake: When Bo lands General Lee on the highway after going up the ramp, the cars around him on the highway change and move between shots. Also when the shot changes General Lee suddenly moves from the outside land to the middle lane. (01:07:45)
Visible crew/equipment: When the Dukes are talking to Prickett and Dil in the middle of the road, Prickett has a pair of sunglasses resting up on his cap. In them, you can see crewmembers and a boom mike reflected. (01:12:20)
Visible crew/equipment: After the Dukes have had their talk with Prickett, and get back in General Lee to go get Uncle Jesse, the shot stays on Prickett for a moment. If you watch in the grill of his truck, you can see the crew and a boom mike reflected in it. (01:13:10)
Continuity mistake: During the car chase through the fields with Bo being chased by the police, the sky keeps changing from light blue to very dark blue, to even a light orange in some shots. (01:15:25)
Continuity mistake: When Boss Hogg is at the rally, he is speaking into a microphone. Between every shot of him talking, the black microphone cord is in a different position. It is very noticeable. (01:20:50)
Continuity mistake: During the rally race, Bo is driving down the forest lane and before catching up with Billy Prickett, he passes a green rally car - twice. Also, after he passes it the second time, it vanishes from the road completely. (01:28:30)
Continuity mistake: The rally race reporter has a microphone with a label around it sporting the channel logo. However moments later in the courthouse scene, the channel logo on the microphone he holds is completely different. (01:30:10)
Continuity mistake: On the way to the courthouse, Bo is about to drive up a ramp that Cooter set up in front of the barricade for him. At the end of the ramp is a big strip of wood, but as Bo rides up it, the wood has vanished in order to allow him to make the jump. (01:31:55)
Continuity mistake: As Bo drives along and Billy is driving alongside, ramming Bo's car, in one shot the metal framing on the front of Bo's car falls down diagonally, yet in the next shot it's back up straight and fixed. (01:31:55)
Answer: Given the massive hype surrounding the film, and the untold publicity it garnered the Charger, I think it's highly unlikely that it was a coincidence, more a cynical marketing strategy.
Manky