What is the Hollywood Ten?

The Hollywoos ten were the ten people that refused to answer any questions during the 1947 House of Un-American Activities Committee. Those people were Alvah Bessie, Herbert Biberman, Lester Cole, Edward Dmytryk, Ring Larcher Jr, John Howard Lawson, Albert Maltz, Samuel Ornitz, Adrian Scott and Dalton Trumbo. They were all found guilty and sentenced from 6-12 months in prison.