There is a book out about the hypcocricy of the Entertainment industry.
Hollywood Hypocrites.
It details just how the liberals work to get around Unions and taxes.
But it is important to remember that there are hundreds, maybe thousands, of conservatives who work in Hollywood who basically have to operate "in the closet." Two years ago I went to an event hosted by Gary Sinese that had 1400 (!!) Hollywood conservatives. He went through each major employment designation---producers, directors, actors---asking each to stand up. There were some 200 producers, 200 directors, and probably 600 actors or other work categories there who stood up.