The book was written with the intention of being adapted for film by Harbou's husband, the director
Fritz Lang. Harbou collaborated with Lang on the script for the film, also titled
Metropolis. Shooting began before the novel was published. The film omits certain parts of the book, especially references to the
occult (of which a small hint exists in the film). Other parts of the story in the book disappeared from the film after drastic cuts made by the studio and distributors after the film's initial release. Some of these cuts have been rediscovered, while others remain lost. Also missing from the film are explications of the moral motivations for certain actions of the main characters. ==See also==