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)
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)
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)
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)
Continuity mistake: When Roscoe and the judge are in the courtroom and the town comes to object the strip mine ordinance, the courtroom doors are held shut by a night stick. When the townspeople start to shake the doors you can see that the night stick slides to an angle, then when they cut to a closer view the night stick is level once again. (01:33:35)
Continuity mistake: In the courthouse scene, the judge's name plaque is on his left side, but seconds later it is to his right with there being no time for him to move it across. (01:33:35)
Continuity mistake: Sheev breaks down the courtroom doors, causing the sides of the doors to get splintered down the sides. Yet in the next wideshot as everyone enters the courtroom, the sides of the doors show no damage. (01:33:40)
Continuity mistake: One of General Lee's wing-mirrors gets blasted off, but it reappears in a later shot. But once Bo and Luke get General Lee to be fixed, it's missing again.
Continuity mistake: When Daisy Duke is talking to Billy about the sponsorship of his car, her hair on her left side moves between shots, from behind her shoulder to in front of her shoulder, whilst she is talking. This happens with her hair numerous times throughout the movie.
Continuity mistake: The General had to tilt on two wheels to squeeze through the narrow opening of the barn door. When the General crashes through the back of the barn you can see that the barn door is wide open even before the police start to open it further.
Continuity mistake: The Dukes are being chased through a field by countless police cars. The car is kicking up mud and dirt and getting dirty. Eventually the General nails a police car on the right front end (left side facing the film viewer). The car is catapulted up onto two wheels and the General miraculously slides through a barn. However, even more miraculous is as the General goes into the barn, the car is completely polished and shows no front end damage at all. The car leaves the barn in pristine condition.
Continuity mistake: When Bo and Luke pick up the General Lee when Cooter has finished fixing it, there are shots flashing between different parts of the new General. One of the shots is of the word Charger, which is located on the headlight cover when it is closed, but in all the shots before and after the headlight cover is open.
Answer: It was never mentioned on the show but the producer/writer has stated they died in a car crash in public and on the DVD.