Other mistake: On the ball field, the one kid running away gets hit in the lower back by the soda can. Problem is the soda can looked as if it were tossed in a gentle arc rather than directly at him. Also, it barely touched him, and he took a few more steps, then grabbed the spot it hit him, then fell, rather than falling immediately.
Visible crew/equipment: As the girl sneaks up on Bill as he's checking out the Happy Toyz truck, the lighting rig and equipment is reflected on the left brake light lens.
Revealing mistake: When the Miller beer semi hits the car the second time, you can see the truck's exhaust stack isn't connected.
Continuity mistake: We see a longshot view of the trucks circling the Dixie Boy, then we see Hendershot saying the trucks can't run if they're depot-ed, then we see another long shot of the trucks circling the Dixie Boy and the trucks are forming the circle again.
Revealing mistake: In the shot after the motorcyclist falls into the water, the camera shakes and you can also see something lifting the cameraman up.
Continuity mistake: When the Green Goblin truck is starting to back up to hit the bible salesman, if you look to the left of the screen you can see the red Autocar garbage truck parked, despite riding around the Dixie Boy as the bible salesman is cussing at it.
Factual error: When Curt and Connie are at the railroad crossing, the lights flash but the bells do not ring. The lights on the gates don't flash either. The lights and bells on the railroad crossing are hooked up on the same circuit.
Continuity mistake: When Connie and Curt go to the gas station a tow truck pulls out to the street on the driver's side - the door is there. But when the truck plows through the front of the gas station and hits Curtis, Curtis sits up and the driver's side door of the tow truck is gone.
Continuity mistake: When Bill and Brett are talking they show the red Auto car Zeke's garbage truck and it's parked between the old blue truck and the toilet paper truck, but when the garbage truck is about to hit Duncan it's parked next to the white Mack cab over truck.
Continuity mistake: During the bridge scene when the watermelon truck crushes the station wagon they show a long shot from the bridge and you can see the watermelon truck crushing the station wagon again. Also the yellow car is in a normal position despite flipping backwards before.
Other mistake: It was interesting that the beer truck didn't continue to run. The rocket blew up the side of the trailer, and the tractor was not affected, so it could have continued to run, like Zeke's garbage hauler after it dumped on the bible salesman's car.
Continuity mistake: When Wanda is mowed down by the machine gun, she fires the rocket launcher. It was fired at a about a forty degree angle, but the rocket went directly at the beer truck. If you look, the rocket and its exhaust trail disappear about a second before the trailer blows up. Also, there is no impact spot from the rocket.
Factual error: When Hendershot fired the LAW at the trucks, the double doors weren't affected. In reality, the doors would have been pulverized by the backwash of the rocket launching. If there is anything or anybody directly behind the LAW when it's fired for a distance of up to 25 feet, destruction or death is assured.
Continuity mistake: When the log truck is chasing Connie and Curtis, they look back and see it closing the distance. Then it pulls alongside, and Connie says "It's gonna bump us!" A second after that, the camera looks at them. They are looking back at the truck, rather than to their left where it supposedly is.
Visible crew/equipment: When Curtis and Connie are being chased by the driverless tow truck, as it first starts to try to get Curtis, you can faintly see a driver.
Continuity mistake: When the bike flips the kid in front of the scoreboard, the steamroller comes crashing out and kills him. It would have had to already been in motion for it to move like it did, therefore been seen moving before the breakout. If it was hiding behind the board and just starting to move, it would have been a lot slower.
Continuity mistake: When the bible guy gets backed into, he flies over the guardrail and there's no blood on the truck at all. When it drives away, there's blood splattered everywhere.
Other mistake: In the pop machine scene, player number 7 gets hit in the head. Yet he stands there like nothing happened before he finally falls down and dies.
Revealing mistake: After the waitress gets cut with the knife, she leans on the grill, it makes a sizzling sound and yet she doesn't get burned.
Answer: It should be noted, the ending title cards seems to set it up so there are no plot holes and answers any "why" questions (which, intentional or not by King, can be debated). While the opening premise is the comet's close pass by Earth caused all machines to turn on people, at the end, the Russians blew up a UFO 2 days later, suggesting that it was the aliens controlling the machines. Bill suggests aliens are trying to wipe out humanity (although at that point he's just guessing and had no evidence of an alien or UFO present), but it can be debated the actual premise was that aliens were just testing or experimenting on people.
Bishop73