If we’re lucky we grow up with our parents and grandparents present in our lives. But very few of us have a grandparent who helped found one of the major Hollywood studios. Filmmaker Gregory Orr learned one day just how powerful was his step-grandfather, Jack L. Warner, when the studio mogul ran every red light along Sunset Blvd. A watchful police officer pulled him over, but upon catching the name on the driver’s license, let Warner and