On this day in 1950, an undiscovered actor named James Dean appears in a Pepsi commercial, dancing with other teens around a jukebox. Dean would later personify the angry, restless youth culture in three films that made a deep impression on the American public: Rebel Without a Cause (1955), East of Eden (1955), and Giant (1956). Dean died at age 24 in a car crash in 1955, before East of Eden or Giant had opened.