Metropolis was my first silent film I watched.  It was a very long, elaborate film.  I noticed right off  how certain men in the film (namely the main male character) wear a lot of make-up.  I was surprised to see such a religious theme in the movie talked about and showed with the Tower of Babel.  Also the character of Maria who was such a good person and encouraged the workers to have hope and faith in a the coming of a Savior was an obvious and strong religious theme. I thought Maria was Jesus-like or she was telling the workers of the coming Savior of the actual Jesus.  I thought the seductive dance of the evil Maria was very racy for the time period with dance moves and wearing of just pasties for a top.  That whole scene was very dark and evil with the whole theme of the seven deadly sins.  That was a very evil and creepy scene.  But at the end good won over evil.  I was surprised that Hitler liked that movie and that gave me the creeps too.  I guess it gave the director Fritz Lang the creeps too that Hitler liked it so much and wanted him to direct movies for the Nazi party.  Lang divorced his wife and left in a complete hurry for America which was a smart move.