History of the World: Part I

Trivia: During the Roman Empire, the woman says walk this way, and they walk like she did. This joke was featured in Young Frankenstein, as well.

Trivia: The Viking funeral gag was a Jewish in-joke, based on the libelous old myth that Jews had horns. (Making light of anti-Semitism has long been one of Mel Brooks' trademarks.)

Trivia: Gregory Hines was cast as a last-minute replacement for then controversial comedian Richard Pryor, who had severely burned himself while freebasing cocaine.

Trivia: While the film's title makes it seem that there would be a sequel, there never was until a 2023 TV sketch show called History of the World: Part II.

megamii

Revealing mistake: When Comicus et al are running from the Roman soldiers, Miriam pulls Comicus through a secret marble door. When it closes, you can see the glue residue revealing that it's Formica.

Nicki

More mistakes in History of the World: Part I

Count De Monet: Your Majesty, you look like the piss boy.
King Louis XVI: And you look like a bucket of shit.

More quotes from History of the World: Part I