Morocco was followed by Dishonored (1931), a major success with Dietrich cast as a Mata Hari-like spy. Shanghai Express (1932), which was dubbed by the critics “Grand Hotel on wheels”, was Sternberg and Dietrich’s biggest box office success, becoming the highest-grossing film of 1932. Dietrich and Sternberg again collaborated on the romance Blonde Venus (1932). Dietrich worked without Sternberg for the first time in three years in the romantic drama Song of Songs (1933), playing a naive German peasant, under the direction of Rouben Mamoulian. Dietrich and Sternberg’s last two films, The Scarlet Empress (1934), and The Devil Is a Woman (1935)—the most stylized of their collaborations—were their lowest-grossing films. Dietrich later remarked that she was at her most beautiful in The Devil Is a Woman.