Continuity mistake: When Tracey and Nick are at the gas station, the clouds in the background keep changing from shot to shot.
Visible crew/equipment: The shadow of the camera truck is visible in the cow pasture.
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.
Factual error: When they are riding in the helicopter, she is shown piloting the helicopter from the left side. However, in actual helicopters, the pilot sits on the right side of the cockpit.
Continuity mistake: When Duane and Blaine burst into the monster truck rally, a hub-cap comes off one of the front wheels. But, for the rest of the scene, both hub-caps are still in place.
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: 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 only had blanks - the non-cut keys that are used to make keys. So when they saw those, they knew that the guy had their key.
wolfchild