People constantly quote and misquote cinema — sometimes without ever having seen the referenced film. Think about lines like “You had me at hello”; “Hasta la vista, baby”; or “Play it again, Sam.” Sometimes the words many of us repeat are never spoken in the movie, and other times they are phrases that actors made up on the spot. Whether it’s from Monty Python, Whoopi Goldberg, or a Spielberg flick, movie quotes are the way we map our cultural common ground.