How is “spread the word” used?

In The Dark Knight Rises (2012), one line is: “You guys, you go knock on doors and spread the word, okay?”

Which movie is “spread the word” from?

The clip at the top of this page is from The Dark Knight Rises (2012).

to tell people about sth

Heard in 6 movies

Oxford100% of films
to tell people about sth
You guys, you go knock on doors and spread the word, okay?

Definitions from the Oxford Advanced Learner's Dictionary, 9th edition

You guys, you go knock on doors and spread the word, okay?

Said in 8 films · #1