It's obvious that this part of Scarface is so recognised.

You say Scarface to someone, and they always say "Say hello to my little friend", then imitate a machine gun - it was the grenade launcher.

When people say that famous quote and then do the machine gun, you correct them by saying that it was the grenade launcher and they'll say that your lying, like they've seen the movie, at most point they hav'nt.

People who quote Mafia movies wrong, are usually the gung ho wannabes who are mostly blinded by the cocaine and money scenes.