On: The NASA Rocket Countdown Came from a 1929 Fritz Lang Film

Metropolis has quite an interesting history:

The original cut was lost and only fragments survived. Since the 80s the most popular version was one made by Giorgio Moroder (the same guy that worked with Daft Punk on the Album Random Access Memories). Over the years different versions and scenes were found all over the world and since 2010 there is version that is considered close to the original.

Popular culture is full of references to this movie, from "The Fifth Element" to Queen's "Radio Ga Ga".

I can also highly recommend "M"[1].

[1] https://en.wikipedia.org/wiki/M_%281931_film%29

I also recommend M. Given the fame of the original film, it is a little bit surprising that they haven't remade it recently.

There is a 2000 Anime and Manga remake of Metropolis. Very interesting variation. (but not close to the original)