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) of the film. A Blu-ray release with new special features came out on December 2, 2008; it is also available on DVD. The Blu-ray was initially only released as an expensive gift set with a booklet, a luggage tag and other assorted gift-type items. It was eventually released as a stand-alone Blu-ray in September 2009. On March 27, 2012, Warner released a new 70th Anniversary Ultimate Collector's Edition Blu-ray/DVD combo set. It includes a brand-new 4K restoration and new bonus material. Almost from the moment "Casablanca" became a hit, talk began of producing a sequel. One titled "Brazzaville" (in the