Made her breakthrough in Ecstasy (1933), a controversial Czechoslovakian film in which she appeared nude.
MGM's Louis B. Mayer offered her a contract and changed her last name to Lamarr, in honor of silent-film actress Barbara La Marr, whom he admired.
Made her first American film, Algiers, in 1938.
In 1942, she and composer George Antheil received a U.S. patent for a "secret communication system." It was initially meant for radio-guided torpedoes and languished for years, but when technology advanced, it became vital to the military and the cell-phone industry. The Professional Engineering Society honored them in 1996.
Received a star on the Hollywood Walk of Fame in 1960.
Published an autobiography titled Ecstasy and Me: My Life as a Woman (1966), but later sued the publisher, claiming the ghostwriter distorted details about her life.
After her death in Florida, her ashes were taken to her hometown of Vienna.