Casablanca (film) right. The Jack Benny Fan Club can feel vindicated." The film was based on Murray Burnett and Joan Alison's then-unproduced play "Everybody Comes to Rick's". The Warner Bros. story analyst who read the play, Stephen Karnot, called it (approvingly) "sophisticated hokum", and story editor Irene Diamond, who had discovered the unproduced play on a trip to New York in 1941, convinced producer Hal Wallis to buy the rights in January 1942 for $20,000, the most anyone in Hollywood had ever paid for an unproduced play. The project was renamed "Casablanca", apparently in imitation of the 1938 hit "Algiers". Although an
Casablanca (film) had turned down the lead role. Studio records make clear that Wallis was committed to Bogart from the start. Another well-known story is that the actors did not know until the last day of shooting how the film was to end. The original play (set entirely in the cafe) ended with Rick sending Ilsa and Laszlo to the airport. During scriptwriting, the possibility was discussed of Laszlo being killed in Casablanca, allowing Rick and Ilsa to leave together, but as Casey Robinson wrote to Hal Wallis before filming began, the ending of the film "set up for a swell twist