The document discusses the history of film censorship and the Hays Code, which was established in 1930 to regulate motion picture production. The three key principles of the Hays Code were that films should not lower moral standards, present correct standards of life, and not ridicule or create sympathy for the violation of law. While social views have changed significantly since then, some elements of the Hays Code like depictions of rape or other repellent subjects remain largely unacceptable in modern films.