By now I am sure that you know that Humphrey Bogart’s character in Casablanca, Rick Blaine, did not say “Play it again, Sam”, nor did Captain Kirk ever say “Beam me up Scotty”. These quotations, however, have taken on a life of their own in our common lexicon and phraseology. Louis Menad considers the question of whether we should care is in this interesting New Yorker article.