Sylvia Kristel adds her sexual allure to the story of Mata Hari (Margaretha Geertruida Zelle), executed by the French in 1917 at the age of 41 for being a double agent. In reality, "Mata Hari" had been married, had children, and performed as a dancer around Europe -- not the normal background for a spy. And according to the man who requested her execution, Captain Ladoux, she was a lousy spy indeed. But Kristel and director Curtis Harrington capture one aspect of Mata Hari that made her most infamous -- her willingness to bed down with just about any military man she found attractive, and none were not. As Kristel jumps into bed with both Germans and French, and others in-between, something of the spirit of Mata Hari may live on in this ostensible biography. Viewers may definitely want to compare versions with Greta Garbo, Marlene Dietrich, or Jeanne Moreau in the lead.