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Hanns Kräly (January 16, 1884 – November 11, 1950), credited in the United States as Hans Kraly, was a German actor and screenwriter. His main collaborations were with director Ernst Lubitsch, and they worked together on 30 films between 1915 and 1929. In 1930, their longstanding partnership and with that much of Kräly's reputable career as a screenwriter came to an end due to an affair he was having with Lubitsch's then-wife Helene Krauss. Wikipedia