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Arthur Robison was a German film director and screenwriter of American origin, recognized for his contributions to German Expressionist cinema. He directed 20 films between 1916 and 1935, with his most notable work being Warning Shadows (Schatten – Eine nächtliche Halluzination, 1923), a silent film celebrated for its innovative use of light and shadow to convey psychological tension. Robison's films often delved into the human psyche, utilizing visual storytelling to explore complex emotions.