 His initial interest was in acting; although none of his parents or other relatives were theatrical people, he managed to pursue acting both on stage and screen.In 1914 with his older brother's help, Haller first joined the American Mutoscope and Biograph Company, also known as the Biograph Studio or Biograph, as an actor.However, he realized his true passion fairly quickly, for he switched to the camera department within a year of joining the studio.