Warner Bros. Movie World

Beside banning sexual and violent content their was a political censorship as well. When Warner Bros. wanted to produce a movie about concentration camps in Germany, the production office forbade it with threats to take the matter to the federal government if the studio went ahead. This policy prevented a number of anti-Nazi films being produced in the time before the Second World War started.

In 1938, the FBI prosecuted a Nazi spy ring, subsequently allowing Warner Bros. to produce Confessions of a Nazi Spy being the first anti-Nazi film in Hollywood.

At the same time the short film " You Naszy Spy" were produced that openly satirized Adolf Hitler and Nazi Germany months before Chaplin's controversial and more famous movie "The Great Dictator" came up.

You can see it as Propaganda work or the necessary discussion of a political threat in public. Definitely Hollywood here takes a political position within a period where the U.S. was still neutral about World War II. As already displayed, the "Warner Brothers" were everything but d´accord with the hanky-panky of the censorship bureau.
The Warner Bros. cartoon "A Tale of two kittys", obviously using Charles Dickens novel "A tale of two cities" as naming basis, directly criticizes the Hays office and code.

In one sequence the character Catstello turns to the audience and says: "If da Hays Office would only let me... I'd give him 'da bird' all right" (with the "bird" being an euphemism for the middle finger, that is an insulting gesture, which were of course band from screen due to the Hays code)

Unsurprisingly the sequence was cut out, before the short first aired on "The Bugs N' Daffy Show", introducing sweet, crazy bird Tweety to the world. Thank you Brothers!