Pre-Code Hollywood refers to the era in the American film industry between the introduction of sound in the late 1920s and the enforcement of the Motion Picture Production Code (usually labeled, albeit inaccurately after 1934, as the “Hays Code”) censorship guidelines. Although the Code was adopted in 1930, oversight was poor and it did not become rigorously enforced until July 1, 1934. Before that date, movie content was restricted more by local laws, negotiations between the Studio Relations Committee (SRC) and the major studios, and popular opinion than strict adherence to the Hays Code, which was often ignored by Hollywood filmmakers.
As a result, films in the late 1920s and early 1930s included sexual innuendo, miscegenation, profanity, illegal drug use, promiscuity, prostitution, infidelity, abortion, intense violence and homosexuality.
Básicamente, el cine de Hollywood de antes de la censura de 1934 era un conjunto de películas que contenían abusos, adulterio, tríos, asesinatos, desnudeces, prostitución, sexo, pasión y suicidios.