in  Algiers (1938). Her many films include  Boom Town  (1940) with  Clark Gable  and  Spencer Tracy ,  Comrade X with Gable,  White Cargo  (1942), and  Tortilla Flat  (1942) with Tracy and  John Garfield , based on the novel by  John Steinbeck .  White Cargo , one of Lamarr's biggest hits at MGM,