“You Know… Morons.” (Blazing Saddles)

In the 1974 comedy/western flick Blazing Saddles, Jim (Gene Wilder) tries to comfort Bart (Cleavon Little) when he complains that he’s still a victim of racism despite being a law enforcement officer. Jim tells him not to listen to the farmers, who he describes as the ignorant “common clay.”

But unbeknownst to everybody (especially the screenwriters), Wilder decided to end his line with a quite impactful “You know… morons.” This final sentence referring to the farmers wasn’t included in the script and was made up on the spot by Wilder, who often enjoyed improvising on the set and did so remarkably well.