Bandit says that it is 900 miles each way from Atlanta, GA to Texarkana, TX. It is actually 665 miles each way if taking the Interstates, or 622 miles if you take US-82, which is likely the route Bandit and Snowman took, since US-82 (erroneously referred to as "Interstate 82" by Silver-Tongued Devil) is mentioned at one point.
Interior shots show the Trans-Am to have an automatic transmission, but in several shots, it's evident a manual transmission model is used - When Bandit says to Snowman "Let's haul ass", he pulls an automatic shifter down into Low and rips away from Snowman's house. In the very next shot, when he takes off from the first traffic light, he revs the engine and dumps the clutch (only possible with a manual) to smoke the rear tires. When Bandit picks up Frog later, you can see him jam the shifter forward (into first gear), dump the clutch again, and shift into second gear causing the "bark" of the tires and sideways movement of the Trans-Am.
When the police car at the road block is knocked off the embankment, the car seen rolling down towards the river is a late-'60s Ford Galaxy, but when it comes to rest at the bottom, it is a Plymouth Fury.
Just before Sheriff Justice gives his, "this car is evidence" discourse to the Alabama State Trooper he pulls up directly behind the Troopers vehicle (obvious by the lights and stickers on the door). Following the discourse, when Sheriff Justice tells the Trooper to F.O. Justice pulls straight forward where the Troopers vehicle should still be parked.
The Bandit agrees to the bet's time limit of 28 hours so that after "tomorrow's race" they can celebrate with Coors. Within a couple of hours, Bandit buys the car, installs the CB radio, orders and receives personalized plates. Being the race is the next day, which is probably on a Sunday, he does all of this on a Saturday.
As Carrie and Bandit approach the playing field's dugout in their Trans-Am, the back wall is clearly made of cinder-block. But when they burst through the other side, the wall is now constructed of wood clapboard.
After Sheriff Justice accidentally arrests the police captain and tells "Moose Twit" junior to unlock the handcuffs, you can see that the handcuffs are already unlocked and open. Moose Twit just goes through the motions.
Before the roof is ripped off the police car by the beam across the road, it had been hit in the right rear by the front of the tractor trailer. After this collision, the right rear quarter panel is missing/damaged. After the police car goes under the beam, the quarter panel is intact.
When Bandit's truck and the Trans-Am pull up to the Coors warehouse in Texarkana, the Trans Am is parked parallel to the curb behind the truck. In the next scene, the Trans-Am is now parked behind the truck at a diagonal angle.
When Bandit is chased by the first cop it is slightly raining and the pavement is wet. Moments later, when he pulls behind a building to hide, the pavement is completely dry and the car's hatch-roofs are off.
The scene where Sheriff Justice drives along a line the side of the road and says "is this a drive in movie?". When he is out of the car yelling at the patrolman that told him he can't drive that car on "his highway", all the cars he drove along side of and the tow truck are gone.
As Bandit and Carrie are coming upon the convoy where they are going to hide from the troopers, both Bandit and the troopers pass the same four vehicles several times before catching up with the convoy. An orange/red VW Bug, a gold 1975 Dodge pickup truck, a tan 1972 Dodge Challenger, and a white 1962 Ford Falcon.
In the diner scene when Buford is eating his Diablo sandwich and a Dr. Pepper, he drips some of the sauce onto his uniform. When Bandit tries to help him wipe the stain with a napkin, there are two other, smaller stains on either side of his tie in addition to the big stain from the sandwich. A minute later, when Buford walks out of the bathroom, all three stains are now gone and his uniform shirt is clean.
When Sheriff Buford T Justice (Jackie Gleason) is threatening the car part thieves with arrest for attempting to strip the wedding car Carrie (Sally Field) abandoned, he appears to have a damp area of sweat staining his shirt below his collar all the way round his neck. As the camera shots of Branford change throughout the scene, the sweat stain disappears and reappears.
In the first police chase when it is dark, Bandit dodges the smokey behind a small house of some kind. As he drives up from the front you can see one of his headlights is not working, yet shortly after when you see the car from the front its working again.
Near the end of the movie when "Snowman" takes charge into the roadblock of cops cars at the raceway, it clearly shows a "bullbar" or a grill guard on the front of the truck when he blasts through the cars (it wasn't there the whole movie), then in the next scene after he hits the cop cars there is no grill guard on the truck nor a single scratch to it.
While being pursued by the Arkansas state trooper who was relieving himself at the side of the road, an interior shot shows the Trans Am without a rear-view-mirror and wind-shield because it's a studio shot. They return in the next outside shot.
During the roadblock scene in front of the store the wide shot shows all 3 cruisers are Plymouth Fury's. However the cruiser that backs up striking the passing cruiser rolling it downhill is a Pontiac Bonneville.
In the scene when Bandit and Frog catch up to Snowman to give him the burgers, she is driving. But when Snowman looks in his side view mirror, Bandit is driving. When they all pull over, Frog is driving.
When Sheriff Buford T Justice's car gets its roof sheared off by the semi-truck trailer, Sheriff Buford T Justice does not have sun glasses on. After the roof gets torn off the vehicle you can see the stunt driver with sun glasses on.
When Carrie drives through the football game and crashes through the dugout area, the Trans-Am is shown hanging a hard, 90 degree, left hand turn. The very next shot shows it suddenly making a hard, 90 degree turn to the right and taking off down the street, showing that this scene was edited together from at least two different takes.
At the end of the film, Buford tells Junior to go arrest the man in the yellow car. Moments later, Buford and Bandit are talking on the CB and a small group of people gather just past Bufords car to watch what is happening. As Buford starts to take off in pursuit of Bandit again, the yellow car, Junior, and the group of people are now gone. In the very next shot from a different angle, the yellow car and people are back, and Junior can once again be seen running after Buford as he is driving away.
When Snowman gets stopped by the bike cop, he says that Snowman was going 96 mph. In the shots before that, you can tell that Snowman was probably going about 65 mph because of how slow the scenery was going by.
When the Trans-Am jumps the bridge, one police car falls into the water and the other hangs onto the side at an angle. It shows the car hanging over open water, but when Sheriff Justice hits that car, it falls into a pile of rubble with almost no water.
During the 'hiding in the convoy' scene, when Bandit (and later Snowman) pass "Mister B's" tanker truck (the last truck in the convoy, or "back door"), we see that the cab is painted blue. However, when we see a close-up of Mister B talking to Snowman on the CB as he passes the convoy, the cab around him is an orangish-red.
The truck that races the Kenworth, at the Roadeo, changes from a 1970-1977 GMC Astro, with racing number 27, to a 1960-1972 White 7400 Series Cab-Over-Engine, with racing number 10. The Kenworth is also not the Bandit's. This is evident by the single exhaust stack (Bandit truck has two), and the race truck is wearing two-tone brown paint in the "Seminole" stripes. The Bandit truck is different in color and design.
When Buford T Justice is behind the Bandit, the Bandit passes Snowman's truck on the shoulder. The Sheriff attempts to pass the truck, but clips it. He loses control and the back end of the car goes sideways. As it crosses back in front of the truck, it is clearly struck in the right rear quarter panel. The very next scene shows the quarter panel in perfect shape.
When the Sheriff and his son are waiting for the funeral procession to pass, a few cars in the procession make the left turn in front of him, and then a few seconds later, the same two cars are shown about to make the same left turn.
During the scenes where the Bandit asks the convoy ahead to "slip into the rocking chair," the weather changes back and forth from sunny and clear to overcast. What is more, after the state troopers get ahead of the blocking truck (the one that cut them off and forced them onto the shoulder) and the Bandit, the Trans Am is clearly visible behind them in the right lane only a car length away, yet they don't even turn their head to see it right there.
When Sheriff Justice lines the three car strippers up against the car he places his sunglasses in his belt next to his gun. As he is about to kick one of the young men in the seat of the pants, only his sunglasses are attached to his belt and the gun is missing. The gun immediately re-appears.
Just after a motorcycle cop pulls over Snowman, the motorcycle cop gets off his motorcycle and takes his sunglasses off. In the very next shot, the motorcycle cop's sunglasses are back on his face again.
When Buford pulls behind the car strippers, he lights his cigarette and snaps the lighter closed to get their attention. Seconds later, when he kicks the kid in the blue shirt, his cigarette is more than half smoked.
When Sheriff sees Bandit (unknowingly) at the Union 76 gas station, he puts the car in gear and plows into another car. There is obvious body damage to the drivers side headlights. A few scenes later when the Sheriff pulls up to a road block that the Bandit already went through, the cars front have no damage at all.
When Bandit first sees Carrie, on the right hand side there is a car pulling out into the road making a left which would put it traveling toward Bandit and Carrie, but as the shot closes in the car is gone.
As Bandit and Carrie are coming up on Sheriff Branford's roadblock in Arkansas, when looking from the Bandit's point of view out the window of the Trans-Am, it's heavily wooded on the left side and a bit more open on the right. When Bandit stops the car and they show the perspective from the roadblock itself, it's now hilly and wooded on Bandit's right, and an open field to Bandit's left with a dirt road that he drives down to get away from the Sheriff.
As Buford's cop car drives under the truck and loses its roof you can see in a few frames that it is not Jackie Gleason. Also the driver is wearing what seems to be safety glasses as his head raises up - the light is reflecting off of the safety glasses.
When Snowman is being thrown out of the bar, as the double-doors are being opened, there is a brief shot of someone's face standing outside on the right-hand side. They are not there when they show Snowman outside. It could be a crew member there to assist with the stunt.
Towards the end of the film, when Bandit passes Snowman on a curve just as the state trooper's car does a 180 degree turn to chase them, a double image of the Trans-Am moves diagonally from the top left of the screen, to the bottom right. It's almost as if it's reflecting off of the camera lens, or a piece of glass placed in front of the camera to possibly protect it.
The "Silver Tongued Devil" asks the Bandit if he is on interstate 82 approaching Fayetteville and the Bandit says yes. But, the route that takes you to Fayetteville from Texarkana is U.S. 71. It is 237 miles of some twisting mountain roads and is five hours in the wrong direction.
After picking Carrie up when they were in Descent County Arkansas, while they were driving, Bandit passes a Georgia State road sign clearly showing as GA 92 with the GA state outline on the sign. Other GA State road signs are seen in Mississippi and Alabama, including GA 85 and GA 138.
At one point in the movie, a radio transmission from a trucker calling himself "Silver-Tongued Devil" says that Bandit and Snowman are "near Fayetteville and Interstate 82". Interstate 82 is nowhere near that part of the country (Arkansas/Mississippi/Alabama), but instead is over 2,000 miles away in Oregon and Washington. The trucker should have said "US Highway 82" instead, as that highway DOES indeed exist in that part of the country. Furthermore, Interstate 82 didn't even exist yet at the time of this movie (1977) as construction of that route didn't even start until 1978 and wasn't completed and opened to traffic until 1988.
Bandit and Snowman are traveling to Texarkana, Texas to pick up Coor's beer. Alcohol sales are not permitted on the Texas side of Texarkana, nor anywhere in Bowie County, Texas. The closest location that sells beer along the western route they were traveling would be Annona, TX in Red River County.
Towards the end of the film, Bandit passes a police car at an intersection on a country road and kicks up a lot of dust. When the police car pulls out into the road to join the pursuit, he radios "This is car 12, I have him westbound on 75". I-75 is an interstate that runs north/south from the upper peninsula of Michigan to the southern end of Florida. It doesn't run east/west, nor is it a two lane country road as depicted in the film.
When the helicopter pilot joins the chase, he radios "I've just picked up the Bandit, eastbound on 95". I-95 runs north/south along the east coast of Georgia, not east/west. the closest they come to driving on I-95 is Savannah GA, which is around 250 miles southeast of Atlanta.
In the song at the opening scene, it is stated that Bandit, while traveling down a steep mountain road, "hit them brakes, found he had no air". Most tractor trucks, and practically all of them in the 1970s, operate with a triple-valve air brake system. Without going into details, if a truck actually lost all the air in the lines, the brakes would be applied, not disabled.
When Sheriff Justice pulls up the three guys at the abandoned car, they do not hear the sound of his car pull up or the sound of him walking, yet they can hear the sound of the cigarette lighter being closed.
Sheriff Justice states repeatedly that he is from Texarkana, Texas, which is in Bowie County, but the decal on the sheriff's car door reads Montague County, which is six counties to the west of Bowie County, (Texarkana, Texas' county), along the Red River.
The radio mic Sheriff Justice uses is for an FM transmission radio. This type of radio transmits on a different wavelength (high band frequency) than CB radios. He'd never be able to talk to any CB users via this mic/radio.
When Bo surprises Cledus with the new Firebird "jammer car", you don't see Bo setting up the ramps, and after Bo drives the Firebird off the ramps, you don't see anyone storing or moving the ramps, and both back doors of the trailer are still wide open. Then you see Bo and Cletus start driving off to Texarkana, and the trailer doors are closed again.
When Carrie (Sally) first gets into the Trans-Am, she exclaims "Are we really going a hundred and ten?" In reality, they were going 110 kilometers per hour which is only 68 miles per hour and no cause for alarm.
When we see Sheriff Buford T Justice for the very first time, as he is opening his door to get out of the car the Sheriff badge on the side of his car has had part of it post-smudged out to cover the lettering.
In the restaurant just before Jerry Reed gets beat up by the bikers, he picks up the telephone and presses 10 numbers and says "Hello? Operator?" He would have only needed to dial zero to speak to the operator.
At the beginning "The Snow Man" and "The Bandit" agree to use odd CB channels and change them every time they talk to each other. And they do change channels during the movie. Everyone else like Sheriff Justice, The Gravedigger, the truckers in the convoy and the prostitutes, are always the same channel as they are without needing to change channels and search for them.
A supposed 1200 mile trip would at some point have to take place in the dark, either in the early morning before sunrise while in Arkansas or in the evening when finishing the trip. At no point in the movie is it ever dark and in fact, it all appears to be mid afternoon.
The 1977 Trans-Am that is used as the boys cross the Texas state-line has the "Honeycomb" wheels which are actually used on 1976 Trans Ams. In other shots the Trans-Ams use the "Snowflake" wheels that were new for 1977 and would be the correct wheel for that model.
When Bandit and Snowman open the garage door of the Coors warehouse, there are stacks and stacks of boxes on pallets that we are meant to believe are full of Coors beer bottles/cans. Yet when Bandit drives the forklift into a stack of boxes, launching Snowman over the stack, the boxes are clearly empty despite the addition of glass breaking sound effects.
When Buford and Bandit are first talking to each other over the CB radios, Buford isn't pushing in the button on the two way radio when he's talking, so in reality, Bandit wouldn't be able to hear him. Also, Buford is talking into the back of the microphone.
During the chase scene just after "Snowman" is pulled over by the motorcycle cop one of the chasing cars pulls a u-turn through median to give pursuit. However when performing this maneuver the car blows the front passenger side tire as witnessed by the large puff of white smoke disabling it from adding to the chase squad.
One scene shows a helicopter pilot speaking into a CB mic held in his right hand, while his left hand controls the "cyclic" lever in front of his seat. In reality, two-way communications in a helicopter are hands free: the pilot speaks into a mic attached to his headset and operated using the red button clearly seen on the front of the cyclic. Also, the cyclic is always operated with the right hand because the left hand is needed for the "collective" control, always located to the left of the pilot's seat.