THE MOVIE(S): The French Connection movies
THE HAT: When Hollywood made a movie based on the exploits of New York City detective Eddie Egan (who was behind a $32 million heroin bust), they copied a few real-life details: his nickname (“Popeye”) and his signature pork pie hat (which he declined to loan to Gene Hackman).
OTHER PORK PIE-WEARING CHARACTERS: Buster Keaton wore pork pie hats (he made himself) in many of his early movies.
[youtube=http://www.youtube.com/watch?v=nP_7ZopT6oM]