The first Western superstar, the taciturn Hart actually was a successful Shakespearean actor who played Messala in “Ben-Hur” on Broadway in 1899 before riding the range in movies. A longtime fan of the Old West, Hart was friends with Wyatt Earp and Bat Masterson. His film career began in 1914. After two supporting roles he gained fame as the lead in the feature-length western “The Bargain” shot on location at the Grand Canyon. Hart strove to make his westerns realistic with detailed attention played to costumes and props. Though Hart could be…