Continuity mistake: In the scene where Dick Shawn and all the characters find the box of money under the big W, Shawn has just thrown Jonathan Winters out of the hole so he would have room to work. But in the next five edits, Winters is both in the hole helping Shawn struggle with the box and is also shown standing outside the hole observing himself along with the others.
It's a Mad Mad Mad Mad World (1963)
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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
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More mistakes in It's a Mad Mad Mad Mad World
J. Algernon Hawthorne: Jolly nasty accident there. Jolly lucky nobody was hurt.
Mrs. Marcus: Where did you get that funny accent? Are you from Harvard or something?
J. Algernon Hawthorne: Harvard? Rather not. I'm English.
Mrs. Marcus: Sounds so foreign.
J. Algernon Hawthorne: Really?
Trivia: The Sid Caesar blowtorch scene was done 85 times before they got it right.