Larry Parks: Larry Parks. Actor: The Jolson Story. When amiable Columbia Pictures actor Larry Parks was entrusted the role of entertainer Al Jolson in the biopic The Jolson Story (1946), his career finally hit the big time. Within a few years, however, his bright new world crumbled courtesy of the House Un-American Activities Committee after the actor admitted under pressure that he was once affiliated with the Communist Party. Although he unwillingly...