The Hollywood Anti-Nazi League was founded in Los Angeles in 1936 by Soviet agent Otto Katz and others with the stated purpose of organizing members of the American film industry to oppose fascism and Nazism. It was run by the American popular front, and it attracted broad support in Hollywood from both members and nonmembers of the Communist Party USA (CPUSA). It ceased all anti-Nazi activities immediately upon the signing of the Molotov–Ribbentrop Pact in August 1939.

John Joseph Cantwell was an Irish-born American prelate of the Catholic Church. He led the Archdiocese of Los Angeles from 1917 until his death in 1947, becoming its first archbishop in 1936. Cantwell was critical of the U.S. film industry and helped found the National Legion of Decency.