What years did the Blacklist primarily affect the film industry?

The period from 1947 to 1960 is significant in the context of the Blacklist in Hollywood, which refers to the era when many individuals in the film industry were denied employment due to their alleged communist affiliations or sympathies. This period coincides with the rise of McCarthyism and the broader Red Scare in the United States, during which there was a heightened fear of communist influence in various sectors, including entertainment.

In 1947, the House Un-American Activities Committee (HUAC) conducted hearings that led to the investigation of many writers, directors, and actors. Those who refused to cooperate or testify about their political beliefs, often referred to as the "Hollywood Ten," were blacklisted, meaning they could not find work in the industry. This practice continued into the early 1960s, affecting the livelihoods and careers of many artists.

The tail end of this era saw a gradual easing of the blacklist's grip, as public sentiment changed and many of those affected began to be rehabilitated or able to work again. Overall, the timeline from 1947 to 1960 encapsulates the height of the Blacklist's influence on Hollywood, making it the correct answer.