Casablanca (film) in 1942 to work on the "Why We Fight" series in Washington, D.C. While they were gone, the other credited writer, Howard Koch, was assigned; he produced thirty to forty pages. When the Epstein brothers returned after about a month, they were reassigned to "Casablanca" and—contrary to what Koch claimed in two published books—his work was not used. The Epstein brothers and Koch never worked in the same room at the same time during the writing of the script. Koch later commented, "When we began, we didn't have a finished script ... Ingrid Bergman came to me and said, 'Which
Casablanca (film) has been attributed to a comment Bogart said to Bergman as he taught her poker between takes. It was voted the fifth most memorable line in cinema in AFI's 100 Years...100 Movie Quotes by the American Film Institute. Six lines from "Casablanca" appeared in the AFI list, the most of any film ("Gone with the Wind" and "The Wizard of Oz" tied for second with three apiece). The other five are: Additionally, the line "Ilsa, I'm no good at being noble, but it doesn't take much to see that the problems of three little people don't amount to a hill