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
Casablanca (film) the seven decades since its production the film has grown in popularity. Murray Burnett called it "true yesterday, true today, true tomorrow". By 1955, the film had brought in $6.8 million, making it the third most successful of Warners' wartime movies (behind "Shine On, Harvest Moon" and "This Is the Army"). On April 21, 1957, the Brattle Theater of Cambridge, Massachusetts, showed the film as part of a season of old movies. It was so popular that it began a tradition of screening "Casablanca" during the week of final exams at Harvard University, which continues to the present day. Other