 This, in turn, had an eventual influence on films dealing with fantasy and horror.The prime example is Robert Wiene's dream-like film "The Cabinet of Dr. Caligari" (1920) which is universally recognized as an early classic of Expressionist cinema.Hermann Warm, the film's art director, worked with painters and stage designers Walter Reimann and Walter Röhrig to create fantastic, nightmarish sets with twisted structures and landscapes with sharp-pointed forms and oblique, curving lines.