1930s
1930 - The Hays Code was introduced, setting the first explicit guidelines for film content.
1939 - Gone with the Wind and The Wizard of Oz were released, both becoming iconic films from this era.
1940s
1941 - Orson Welles released Citizen Kane, widely regarded as one of the greatest films ever made.
1946 - Marked as Hollywood's most profitable year with theater attendance skyrocketing.
1950s
1952 - The film Bwana Devil was released as the first 3D film.
1953 - The Robe became the first film released in CinemaScope, a widescreen format designed to compete with the rising popularity of television.
1954 - Akira Kurosawa's Seven Samurai premiered, influencing countless filmmakers and solidifying its place as a cinematic triumph.