BenLaw said:
Are you suggesting birth of a nation and metropolis are of similar quality? I found metropolis pretty riveting, some of the imagery was superb as well as the city scape sets. It's a while since I saw it but as I recollect most of the film is about the division between the workers and the owners of the capital. I can't recall drawing any conclusions on what stance the film was taking; I should watch it again. I keep meaning to buy the blu ray version as I believe that incorporates a further print recently discovered and matched to a contemporaneous score is now believed to be very, very close to the original version. I find a lot of it disturbing, but I find German expressionist films much more interesting than US films of the time. I am enthralled by nosferatu, der golem and the cabinet of dr caligari.
The Birth of a Nation and Metropolis are very different films. The former is arguably more explicitly offensive, with its representations of sexually malevolent Black masculinity and heroic depiction of the Ku Klux Klan. Themes of non-white sexual malevolence are also central to Broken Blossoms or The Yellow Man and the Girl.
Whatever our ideological interpretation, Metropolis and The Birth of a Nation are important films stylistically. Expressionism's influence is of course most directly felt in the horror film and noir; while some critics argue that Griffith invented cinematic language. (There's a fair bit of hyperbole in the latter statement, but The Birth of a Nation is striking and visually epic.)
I was ill the first time I saw Metropolis, as an undergraduate many years back now, so I always associate the film with a feeling of nausea. I own the Blu-ray; and if you enjoy the film stylistically it's definitely worth buying. As you say, the recently found material has been included, along with the newly recorded score.