filmsofmovies’s review published on Letterboxd:
The first thing everyone notices and best remembers about "The Cabinet of Dr. Caligari" (1920) is the film's bizarre look. The actors inhabit a jagged landscape of sharp angles and tilted walls and windows, staircases climbing crazy diagonals, trees with spiky leaves, grass that looks like knives. These radical distortions immediately set the film apart from all earlier ones, which were based on the camera's innate tendency to record reality.
The stylized sets, obviously two-dimensional, must have been a lot less expensive than realistic sets and locations, but I doubt that's why the director, Robert Wiene, wanted them. He is making a film of delusions and deceptive appearances, about madmen and murder, and his characters exist at right angles to reality. None of them can quite be believed, nor can they believe one another.