An overture of strings lays out the main theme, transitioning to a film noir sort of march, and finally to a jazz orchestra / piano concerto reprise of the main theme. Great opening title music. The march sections leave room for narration over the top if you wished.
See also "Clockwise": filmmusic.io/song/6806-clockwise
Extended license includes full-quality 16-bit 44.1Khz .WAV