 Hellman had his first taste of producing when he took over the role of Executive Producer from his client, President and Producer, Worthington C. Miner in the final days of Unit Four Productions which was a partnership of George Roy Hill, Franklin Shaffner and Fielder Cook, producing live one-hour dramas on NBC (1955-7).After leaving NBC, Hill, Shaffner and Cook moved on to directing assignments at Playhouse 90 which was the first 90-minute TV drama series out of CBS's new studio on the West Coast.In 1959, Hellman dissolved his talent agency and turned to producing motion pictures exclusively.