The stories of two contrasting inventors and innovators who made contributions to the allied efforts in World War II.  Both featured in films.  Hedy Lamar (1914 - 2000) was an Austrian actress and Hollywood star who was called the most beautiful woman in the world.  She invented a radio technique still used today in wifi and bluetooth technologies.  Barnes Wallis (1887 - 1979) invented the bouncing bomb used by the RAF in the dam busters raid of 1943 which breached the Mohne and Eder dams in Germany.  He was played by Michael Redgrave in the 1955 film, the Dam Busters.