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) Harmetz argues that they "brought to a dozen small roles in "Casablanca" an understanding and a desperation that could never have come from Central Casting". They were frequently cast as Nazis in war films, even though many were Jewish. The comedian Jack Benny may have had an unbilled cameo role, as was claimed by a contemporary newspaper advertisement and in the "Casablanca" press book. When asked in his column "Movie Answer Man", critic Roger Ebert first replied, "It looks something like him. That's all I can say." In a later column, he responded to a follow-up commenter, "I think you're