It's been called one of the greatest films ever made, and it's undoubtedly among the most beautiful. German director F.W. Murnau's 1927 silent follows a naive country couple (Janet Gaynor, George O'Brien) as they wander through a stylized big city. With its fluid cinematography, dreamlike production design and ingenious use of optical effects, this unforgettable masterpiece stands as the pinnacle of silent movie-making.