Factual error: When Ding Bell is passing the truck, his car downshifts then shifts into a higher gear after passing the truck. Ding never took his hands off the wheel. This is in a VW Bug. These all had manual transmissions when this was filmed. He would have had to manually shift the gears to have the car change gears, but he kept steering with two hands on the wheel. (00:33:00 - 00:33:25)
It's a Mad Mad Mad Mad World (1963)
1 factual error - chronological order
Directed by: Stanley Kramer
Starring: Spencer Tracy, Peter Falk, Mickey Rooney, Carl Reiner, Jim Backus, Buddy Hackett, Jonathan Winters, Sid Caesar, Milton Berle, Phil Silvers
Continuity mistake: In the last scene when they are all on the fire escape, there is one part where the landing nearly collapses and Sylvester is seen nearly flying off the landing. The next immediate shot shows Sylvester fighting for the ladder. He apparently climbed up the landing and crawled over a bunch of people in a fraction of a second.
Sylvester Marcus: I'm coming. That's what I'm here for. That's why you had me, Mama, to save you.
Trivia: The Sid Caesar blowtorch scene was done 85 times before they got it right.