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) Nazis cannot arrest him, saying, "This is still unoccupied France; any violation of neutrality would reflect on Captain Renault," Ebert points out, "It makes no sense that he could walk around freely. ... He would be arrested on sight." In addition, no uniformed German troops were stationed in Casablanca during World War II, and neither American nor French troops occupied Berlin in 1918. According to Harmetz, the usual route out of Germany, at least for people in the film industry, was not via Morocco and Lisbon but via Vienna, Prague, Paris and England. Only the film's technical adviser, Robert Aisner,