The nephew of famed playwright Philip Barry, Lorenzo Semple Jr. failed to acieve similar renown with his work for the stage in the 1950s, but television and then movies proved an altogether richer field for his scriptwriting skills. In the early 1960s, his work on such light-hearted series as "The Rogues" and "Burke's Law" eventually led to his becoming story consultant for the phenomenally popular "Batman" series, writing many episodes personally and also scripting the 1966 spin-off movie. He must have wanted to show he was capable of more serious stuff, though - in 1968, the disturbing thriller "Pretty Poison", which became a major cult movie, demonstrated his versatility and in the 1970s he was involved in scripting such notable films as "Papillon", "The Parallax View" and "Three Days Of The Condor". The unsuccessful 1976 remake of "King Kong" began a long association with producer Dino de Laurentiis. Subsequently, he again worked in television.