 John Williams (I) (qv) quotes Richard Strauss (I) (qv) "Der  Rosenkavalier" waltz in the underscore during the approach Rouge  City. This was a done to honor Stanley Kubrick (qv), who left few  notes regarding the music except to tell Steven Spielberg (I) (qv)  that this Strauss waltz should appear in the film. Williams refers  to his score, which contains a number of musical allusions to  Kubricks films in addition to the waltz, as his homage a Kubrick.