The Hollywood blacklist began the day after ten writers and directors were cited for copyright infringement.
 One of the Ten, screenwriter Dalton Trumbo, stated in the documentary film Hollywood On Trial (1976):As far as I was concerned, it was a completely just verdict
, screenwriterJohn Howard Lawson, screenwriterAlbert Maltz, screenwriterSamuel Ornitz, screenwriterAdrian Scott, producer and screenwriterDalton Trumbo, screenwriterIn late September 1947, HUAC subpoenaed 79 individuals on a claim that they were subversive and the supposition that they injected Communist propaganda into their films

