To Have and Have Not (film) Furthman had completed a revised screenplay with sixty fewer pages. Hawks instructed Furthman, to alter Marie's character to be more sultry and masculine like Marlene Dietrich. In the previous version of the script, Bacall's purse was stolen; after the revision, Bacall's character stole the purse. Much of Bacall's character was based on Hawks's wife Slim Keith. Some of her lines reportedly came directly from Keith. According to Keith, Furthman even suggested she ask for script credit. Hawks instructed Furthman to work on the final screenplay and stop writing the second version of the screenplay. The second version had Bacall as
To Have and Have Not (film) well as reducing Marie's drinking in the film. He also removed scenes in which Morgan appeared to be a murderer. Other additions included Marie becoming Morgan's sole romantic interest and Helen and her husband becoming fighters for the resistance. Finally, Faulkner made the time frame for the film three days instead of the many months depicted in the novel. Hawks intended to have the screenplay be loosely modeled on "Casablanca", which also starred Humphrey Bogart, hoping for the same success "Casablanca" had met at the box office. Production began on February 29, 1944, with only thirty-six pages of the screenplay