Multiple numbers from the stage score were used for the film, which also featured three other songs by Kander and Ebb, including two written for the adaptation. In the traditional manner of musical theater, most major characters in the stage version sing to express their emotions and advance the plot; in the film, however, the musical numbers are almost entirely diegetic and take place inside the club, [ 6 ] [ 5 ] with the exception of " Tomorrow Belongs to Me ", which is not performed in the club or by the club characters, but is still diegetic, a nationalistic song sung by a Nazi youth and the German crowd.
In , Cabaret was the twelfth live-action musical film selected by the Library of Congress for preservation in the United States National Film Registry as being deemed "culturally, historically, or aesthetically significant". A new British arrival in the city, Brian Roberts, moves into the boarding house where Sally lives. A reserved academic and writer, Brian must give English lessons to earn a living while completing his doctorate. Sally tries to seduce Brian, but he tells her that on three previous occasions he has tried to have sexual relationships with women, all of which failed.
They become friends, and Brian witnesses Sally's bohemian life in the last days of the Weimar Republic. When Brian consoles Sally after her father cancels his meeting with her, they become lovers, concluding that his previous failures with women were because they were "the wrong three girls".
Maximilian von Heune, a rich, married playboy and baron , befriends Sally and takes her and Brian to his country estate where they are both spoiled and courted. After a somewhat enigmatic experience with Brian, Max drops his pursuit of the pair in haste. During an argument, Sally tells Brian that she has been having sex with Max, and Brian reveals that he has as well. Brian and Sally later reconcile, and Sally reveals that Max left them marks and mockingly compares the sum with what a professional prostitute earns.
Sally learns that she is pregnant but is unsure of the father. Brian offers to marry her and take her back to his university life in Cambridge. At first, they celebrate their resolution to start this new life together, but after a picnic between Sally and Brian, in which Brian acts distant and uninterested, Sally becomes disheartened by the vision of herself as a bored faculty wife washing dirty diapers.
