Long running movie series or possible serial adventure train films. This thrill-a-minute serial was the longest running of the entire silent film era. It was produced between 1914 and 1917, and consisted of 119 almost weekly episodes. The initial 48 starred HELEN HOLMES, one of the most celebrated silent screen serial queens. Unlike the cliffhanger serials of the era, The Hazards of Helen is actually a film series made up of near autonomous single reel twelve-minute melodramas. Most episodes of this serial are presumed lost.