I think it was Joseph McCarthy during the height of the red scare.
The film industry was targeted as subversive and the individuals accused became known as the Hollywood ten.
Movie Industry
they were accused of being contempt of congress
The Hollywood Ten
The Hollywood Ten is a 1950 American 16mm short documentary film. In the film, each member of the Hollywood Ten made a short speech denouncing McCarthyism and the Hollywood blacklisting.
The duration of One of the Hollywood Ten is 1.82 hours.
Hollywood's Top Ten was created on 2010-03-29.
One of the Hollywood Ten was created on 2000-09-29.
The Hollywood Black List started in and around the 1940's all the way to 1960.
They were accused and charged of being communists.
Yes, Arthur Miller was included in the Hollywood Ten, and was put to trial.
The Hollywood Ten