Began career as an attorney with Columbia Pictures in the late 1970s before joining NBC and later HBO as an executive specializing in business affairs and programming operations. At HBO Pictures Bieber supervised production of more than 20 films in the mid-80s including Roger Spottiswoode's "The Last Innocent Man", Martin Davidson's "Long Gone", the well-received "Mandela" and "Baja Oklahoma". In 1988, with actor/producer Michael Douglas, he formed the independent production company Stonebridge Entertainment, where as president he produced "Flatliners" (1990) and executive produced "Radio