The Talmadge sisters were two of the most beloved stars of the silent era. At first glance, they could hardly seem more different. Norma was a slight, soulful-eyed brunette beauty adept at “emotional” roles while Constance was a tall, gawky blond, not particularly pretty but with a face full of mischief. Yet they were bound together closely in their professional careers and linked in publicity as well as in their personal lives. Their films were marketed together to distributors, and publicity generally presented them as a family unit, with sister Natalie along with their mother, the indomitable Peg. Norma is something of an enigma today. Though most of her films survive, they are rarely screened. Constance has fewer surviving films, but is...