After school, he worked in entertainment law with the firm Pacht, Ross, Warne & Bernhard and represented among others the Writers Guild of America. In the 1954 writers strike he served as chief counsel and negotiator for the guild helping to establish the concept of "separation of rights and residuals" which ensured that all writers would receive payment for their work regardless of the format in which it was used, be it in plays, radio, television, film, or simply for sales promotion. In 1956, Stulberg joined Columbia Pictures as an executive assistant to Ben Kahane, second in charge to Harry Cohn, and worked his way up through the company, becoming in 1960, vice president and chief studio administrative officer.
Studio Head
In 1967, Stulberg was hired by CBS president William S. Paley to run CBS' new motion picture division, called Cinema Center Films where he oversaw 26 films including Little Big Man and The Boys in the Band. In 1971, he was approached by 20th Century Fox to be president and chief operating officer when Fox's future was threatened by banks intending to call in their loans, which they offered to extend only if Stulberg were hired. He worked with chairman and CEO Dennis Stanhill. Stulberg worked to turn around the studio's financial performance. He had some notable successes and some failures as well but over all opinion on Stulberg's tenure was quite positive in light of his salvaging and reallocating misused funds, revamping the studio's sagging image, and his foresight in making such films as the epic classic Star Wars and cult favorites like Rocky Horror Picture Show, Young Frankenstein and Sounder. In 1974 Stulberg left Fox after differences with Stanhill and returned to practicing law at the entertainment law firm of Mitchell, Silberberg and Knupp for five years. He returned to the film business in 1980 and became president of PolyGram Pictures making Endless Love and An American Werewolf in London. He later became head of American Interative Media, chairman of the board of Philips Interactive Media of America and a director of Trimark Pictures.
Personal life
Stulberg was married to Helen Stulberg. They had four children: Jac Stulberg, Sita Stulberg, Scott Stulberg and Lysienne "Lysa" Stulberg. Stulberg died from complications related to diabetes.