How long was the film code enforced?

The enforcement of the film code, commonly referred to as the Hays Code, spanned approximately 30 years and was primarily in effect from the early 1930s until the motion picture industry began to abandon it in the late 1960s. The code was established in 1930 and officially enforced starting in 1934, creating a set of guidelines regulating the content and themes that could be depicted in films to ensure appropriateness for all audiences. As societal norms evolved, the code's restrictions increasingly clashed with the themes filmmakers wanted to explore, leading to its decline and eventual dissolution.

This context reveals that while other options may suggest shorter timeframes, the correct answer accurately reflects the significant duration of the code's enforcement during a pivotal period in film history.