Mata Hari is a 1931 American PreCode film loosely based on the life of Mata Hari, an exotic dancercourtesan executed for espionage during World War I. The film stars Greta Garbo in the title role. The film is credited with popularizing the legend of Mata Hari.citation needed
Lieutenant Alexis Rosanoff Ramon Novarro of the Imperial Russian Air Force lands in Paris after a dangerous flight over enemy territory, bringing important dispatches from Russia. He persuades his superior, General Serge Shubin Lionel Barrymore, to take him to see Mata Hari perform that night. Rosanoff is instantly smitten by her as are most of the men of Paris. By youthful exuberance and good looks, he persuades her to spend the night with him. However, the next morning, she makes it clear to him that it was a onetime dalliance.Carlotta Karen Morley secretly instructs Mata Hari to report to Andriani Lewis Stone, their spymaster. Andriani orders her to find out from General Shubin the contents of the dispatches Rosanoff brought. ........
Source: Wikipedia