Hedy Lamarr
Hedy Lamarr was an Austrian-born American actress, inventor, and film producer. She appeared in 30 films over a 28-year career in Europe and the United States, and co-invented an early version of frequency-hopping spread spectrum communication, originally intended for torpedo guidance. Lamarr was born in Vienna, Austria-Hungary, and acted in a number of Austrian, German, and Czech films in her brief early film career, including the controversial Ecstasy. In 1937, she fled from her husband, a wealthy Austrian ammunition manufacturer, secretly moving to Paris and then on to London. There, she met Louis B. Mayer, head of Metro-Goldwyn-Mayer studio, who offered her a Hollywood movie contract, where he began promoting her as "the world's most beautiful woman". She became a star through her performance in Algiers, her first American film. She starred opposite Clark Gable in Boom Town and Comrade X, and James Stewart in Come Live with Me and Ziegfeld Girl.