From Wikipedia Eugene O'Brien (Birthname: Louis O'Brien b. November 14, 1880 in Boulder, Colorado – d. April 29, 1966 in Los Angeles, California) was a silent film star and stage actor. He studied medicine at the University of Colorado at Boulder but was keener on the stage than becoming a doctor. O'Brien switched to civil engineering under his family's guidance, but his heart was still set on becoming an actor. He moved to New York City and was "discovered" by theatrical impresario Charles Frohman who signed O'Brien to a three-year contract and put him in The Builder of Bridges, which opened on Broadway at the Hudson Theatre on October 26, 1909. O'Brien made his name playing opposite Ethel Barrymore, in a revival of Sir Arthur Wing Pinero's play Trelawny of the 'Wells', which opened at the Empire Theatre on New Year's Day, 1911. O'Brien's first film, Essanay Film's The Lieutenant Governor, in which he had the starring role, played in Boulder's Curran Theatre in February 1915, giving his family its first opportunity to see him act.[3][4] World Film Corp. chief executive Lewis J. Selznick made O'Brien a screen star, putting him in an adaptation of Wilkie Collins' The Moonstone. Subsequently he was leading man opposite some of the leading female stars of the day, including Mary Pickford, Norma Talmadge and Gloria Swanson and became a silent screen matinée idol. He retired from acting when the talkies came in, making his last film, Faithless Lover, in 1928 at 47 years old. For his work on movies, he received a "Star" on the Hollywood Walk of Fame.
  Flames
  John Smith
  The Legend of Rudolph Valentino
  The Return of Eve
  The Chaperon
  Secrets
  Poor Little Peppina
  Under the Greenwood Tree
  The Spirit That Wins
  Sealed Hearts
  Fine Manners
  A Romance of the Underworld
  The Wonderful Chance
  Rebecca of Sunnybrook Farm
  The Safety Curtain
  The Romantic Age
  Souls for Sables
  The Rise of Susan
  Clay Dollars
  Siege
  Dangerous Innocence
  Poppy
  The Moth
  The Ghosts of Yesterday
  By Right of Purchase
  De Luxe Annie
  Her Only Way
  The Voice from the Minaret
  The Only Woman
  Channing of the Northwest
  The Broken Melody
  The Last Door
  The Scarlet Woman
  Graustark
  The Moonstone
  Little Miss Hoover
  Fires of Faith
  Just Out of College
  The Perfect Lover
  Gilded Lies
  His Wife's Money
  Worlds Apart
  A Fool and His Money
  Is Life Worth Living?
  Come Out of the Kitchen
  Broadway and Home
  The Figurehead
  The Prophet's Paradise
  The Faithless Lover