One of the series of decisions that the great screenwriter John McNamara made was about who to depict. [Ronald] Reagan had a role in HUAC, he was a friendly witness, but never went over-the-top about it.
Jay RoachIt was a way to try and shut down what the unions were negotiating for, like better hours and pay. [Dalton] Trumbo and his friends joined the Communists mostly for these reasons.
Jay Roach