Karl Grüne was an Austrian film director and writer. His film "Schlagende Wetter" (1923) is an early example of naturalism on screen, during a period in filmmaking when expressionism was the norm.
Biography：Karl Grüne was an Austrian film director and writer. His film "Schlagende Wetter" (1923) is an early example of naturalism on screen, during a period in filmmaking when expressionism was the norm.
