Casablanca is an Oscar-winning 1942 romance film set in the Vichy-controlled Moroccan city of Casablanca.
In a 2005 poll by the American File Instaitute, six lines from Casablanca appeared in the top 100 most memoralbe lines in the cinema history, by far the most of any film (Gone with the Wind and The Wizard of Oz were next, with three apiece).
They were:
"Here's looking at you, kid." (5th)
"Louis, I think this is the beginning of a beautiful friendship."(20th),
"Play it, Sam. Play 'As Time Goes By.'" (28th),
"Round up the usual suspects." (32nd),
"We'll always have Paris." (43rd),
"Of all the gin joints in all the towns in all the world, she walks into mine." (67th).
