A Night in Casablanca storyline for the film was intended to be a direct parody of "Casablanca," with the characters having similar-sounding names to the characters and actors in the 1942 film. Groucho Marx has said that an early draft named his character "Humphrey Bogus", a reference to the leading actor in "Casablanca," Humphrey Bogart. Warner Bros. did not actually litigate, or even threaten to litigate, but it did issue a formal inquiry to the Marx Brothers concerning the plot and script of the film. The Marx Brothers exploited the situation for publicity, making it appear to the public that a frivolous lawsuit was
A Night in Casablanca in the works, and Groucho sent several open letters to Warner Bros. to get newspaper coverage. These letters were among those he donated to the Library of Congress, and he reprinted them in his book "The Groucho Letters," which he published in 1967. In the end, the matter died without legal action, and the storyline of the film was changed to be a send-up of the genre rather than "Casablanca" specifically. Warner Bros. now owns the distribution rights to this film via Castle Hill Productions. A Night in Casablanca A Night in Casablanca is a 1946 film starring the Marx