ns bishop’s review published on Letterboxd:
This silent film (renovated and remastered in 2002 with new score) is notable for its mountain cinematography, not for its silly love triangle plot. It's also notable as the first film appearance of Leni Riefenstahl, later known as Hitler's favorite filmmaker (Triumph of the Will, 1935). Here she plays Diotima, a dancer and the love interest of two men.
Director Arnold Fanck, part of the German expressionist film movement, always shot on location. The mountain scenes, especially the nighttime scenes with skiers carrying flares whlle searching for their lost colleagues, are amazing. There's also a dreamy fantasy ice palace scene with strikingly dramatic lighting (the crew built the ice palace).