29-06-2011, 16:46
A clever moment that comes to mind is John Woo's Face Off: John Travolta (the good guy) and Nicholas Cage (the bad guy) have exchanged faces (?!) and there's a scene where "John Travolta" (i.e. really the bad guy but with the good guy's face) is seducing the real good guy's wife, who doesn't know it's really the bad guy and not her husband. The music for the scene is Chopin's Raindrop Prelude, which is in ABA form where the A section is in D-flat major while the B section is in C-sharp minor. D-flat and C-sharp are of course the same note, so the piece's outer sections are in the major key while it has an inner section in the minor version of the same key--just as the bad guy is lurking behind, and has the same face as, the good guy's exterior.
