Factual error: When Whoopi Goldberg is riding in the supersonic car with her daughter, it shows a bullet traveling at the same speed as the car. However, most bullets travel at 1700 miles per hour; far exceeding the vehicle's maximum speed.
Continuity mistake: When Duane and Blaine see the keycutter drive off Blaine cries "There he is!" In the first shot Blaine' hands are down. But in the next shot they are up. (00:52:30)
Continuity mistake: When the kids are crowded around Enrico, watching him sleep, the crowd changes position. (00:50:30)
Continuity mistake: When the Italian man comes into the building to get to the locker with the money, the other man is talking on the phone. When he finishes talking, he closes the phone which means he disconnected the call. But when the Italian man falls asleep the people on the other side of the telephone can hear the snoring although the call was already disconnected.
Continuity mistake: Between shots the bikers riding beside Hitler's car change. (01:07:45)
Continuity mistake: In the single outside shot of the "Fatburger" diner, when we hear Bev saying "right, everybody OK? You alright..." look at Hitler's car, parked out front - you can see that the front windsheild (which got smashed earlier) is either missing or intact, because no smash marks are visible. (01:16:10)
Audio problem: When Owen is fixing the tyre and all the Lucy's come outside, the old Lucy says "Well maybe we should check the oil," but her mouth says a different line. (01:04:35)
Continuity mistake: When the engine falls from the back of a truck, Zach is driving his van perfectly in the right lane, but when in cuts to a closeup of the wheel of his van driving over the engine, he is now driving so half of the van is in each lane. (00:58:25)
Continuity mistake: When Vera and Merrill sneak up to the rocket car, and start pretending to present it, there are two men speaking by a stand, which has six microphones standing on it. However when Vera and Merrill start the rocket car up, we see the two men turning round to look, and now two of the microphones are lying down on the wooden stand, and a seventh mike has appeared. (01:14:15)
Continuity mistake: When Vera and Merrill enter the tent and start drinking and sucking ice cubes, Merrill's red and black scarf is spread out across her arm/shoulder and is falling out, but it is neatly hanging around in the next shot. (01:13:35)
Continuity mistake: When Donald Sinclair and the gamblers are on the private plane, from an exterior view the plane has five, spaced out, circular windows, but in the interiors shot we see the plane has many more windows, which are less spaced out and are now rectangular. (01:31:35)
Continuity mistake: When Nick and his friend are talking in the hotel lobby about breaking rules, the extras in the background change in every shot, some passing twice, some jumping location, others appearing and disappearing. (00:11:10)
Continuity mistake: The knot in the rope and the way the rope is tied around the bumper of Duane's car, in the scene where they break the radar, changes between shots. (00:30:15)
Revealing mistake: When Enrico is putting the heart back into the bag, but it flies out of the window, as Zack pulls the van to a halt, you can see fresh tyre marks on the road, in the exact same place, from a previous take. (01:05:50)
Continuity mistake: When the bikers destroy Hitler's car, they break off the front left flag. Later, when Hitler's car crashes into the WWII veteran convention, the flag is back. You can also see it is back later when the people come to collect it from the diner car park. (01:07:40)
Continuity mistake: When Duane and Blaine are chasing the key-cutter who stole their key, they drive over the same hill and land twice - note the same tree stump they pass twice. (01:00:40)
Continuity mistake: Throughout the chase-after-the-hot-air-balloon scene, the hood of the blue car that Blaine and Duane drive differs from dusty to sparkling clean from shots. (01:00:55)
Continuity mistake: When Donald Sinclair explains the race, he explains that they have 1 in 6 chance of winning, same as a die roll, then he rolls the die. Later in the scene, the die has vanished without anyone moving it.
Other mistake: When Hitler's car is getting destroyed, the shot of the muffler falling off the truck is the exact same shot used for when Rowan Atkinson and Wayne Knight were in the van. This is most notable because the bikes disappear and the car isn't even Hitler's car, it's a white van.
Other mistake: When Tracey is going crazy in the helicopter, she shouts, 'I'll ram this helicopter right down your throat', but on the subtitles it says, 'I'll ram this mother f**ker right down your throat'.
Answer: They say, in turn: "Hello, Ladies!" "We saw you runnin' on the highway" "Without a chaperone" "Somebody has some s'plainin' to do".
ChiChi