“You have an industry that was run by Jews, censored by Catholics, with an audience of Protestants. ... Only in America.”

— Steven Ross, USC history professor, in the 2007 documentary “The Brothers Warner,” on the early days of Hollywood. Unfortunately, “Brothers” is a tiresome doc, since it's written-directed by Cass Warner, Harry's granddaughter, and is too much about burnishing the family rep. I could only watch about a third of it. But Ross is good as a talking head.