Famous Movie Lines That Were Actually Improvised
The Third Man
Orson Welles was a genius in the field of film, and his influence is still felt til this day in the movie business. He ad-libbed one of the longest unscripted film lines you’ll ever hear for The Third Man. Here’s the line: “In Italy for 30 years under the Borgias, they had warfare, terror, murder, bloodshed.
They produced Michelangelo, Leonardo da Vinci, and the Renaissance. In Switzerland, they had brotherly love, five hundred years of democracy and peace.

The Third Man
And what did that produce? The cuckoo clock.”