Just for a little clarificaton on Carl's question...

Bogart never said, "Play it again, Sam" just as KmPok has pointed out.

A drinking Rick tells Sam, "You played it for her, you can play it for me. So play it."

This is the line that everyone "remembers" as "Play it again, Sam."

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"Angriff, Ran, Versenken!"-Onkel Karl
"Sink 'Em All"-Uncle Charlie