Now, this isn't the best example because I wrote it today when I was online. I just thought of the scene where Fredrich saw all the eyes on the false Maria and went nutso. Rotwang had her dance in front of the captains to convince them she was a perfect subtitute he left no detail unturned, hence the sweat. In the story the false Maria goes underground and convinces the workers to destroy all the machinery. They have no idea what the machines they work on do and end up flooding the city. The false Maria goes up in flames when she gets caught by the crowd. Rotwang falls off a roof. Fredrick and the real Maria get back together and the workers somehow negotiate a settlement with the city master so they can come upstairs and enjoy the fruits of their labor...Its a very complicated story but for 1928 an excellent piece of work by Fritz Lang. Go to your local lib and check out the flick. The media( silent film) was a sries of vignettes designed to tell an intense tell while keeping the flick short.