Hedy Lamarr studied engineering, which she abandoned to study acting. She was the first actress to appear nude in a film. She married a war weapons entrepreneur who supported the powerful arsenals of fascist governments. Close to her possessive husband, Hedy was forced to attend his business meetings, where she understood the immense arms power and its high technology. She learned about communications during World War II, in which the weapons guidance system was remote-controlled through radio signals, which were easily tapped by the enemy.