A native of Philadelphia, Pennsylvania, Jack H. Harris first entered show business by way of vaudeville, singing and dancing with Cliff Edwards' (aka "Ukeleke Ike") Kiddie Revue at age six. Working his way up from an early job as a theater usher, Harris went into publicity and learned distribution, eventually opening his own offices. Dissatisfied with the minor black-and-white films foisted upon him, he quickly developed an itch to produce his own pictures. Linking up with the moviemaking ministers of Pennsylvania's Valley Forge Film Studios, Harris collaborated on The Blob (1958), a film that eventually grossed more than a hundred times its $240,000 cost. In the decades since, Harris has followed up on this early success with 4D Man (1959), Dinosaurus! (1960), Eyes of Laura Mars (1978) and a "Blob" sequel (Beware! The Blob (1972)) and a remake (The Blob (1988)).