New York gangster Ben 'Bugsy' Siegel takes a brief business trip to Los Angeles. A sharp-dressing womanizer with a foul temper, Siegel doesn't hesitate to kill or maim anyone crossing him. In L.A. the life, the movies, and most of all strong-willed Virginia Hill detain him while his family wait back home. Then a trip to a run-down gambling joint at a spot in the desert known as Las Vegas gives him his big idea.
| Camera | Peter Sorel | Still Photographer |
| Sound | Willie D. Burton | Sound Mixer |
| Directing | Barry Levinson | Director |
| Writing | James Toback | Screenplay |
| Production | Warren Beatty | Producer |
| Production | Barry Levinson | Producer |
| Sound | Ennio Morricone | Original Music Composer |
| Camera | Allen Daviau | Director of Photography |
| Editing | Stu Linder | Editor |
| Production | Mark Johnson | Producer |
| Writing | Dean Jennings | Book |
| Camera | Paul C. Babin | Camera Operator |
| Directing | Julie Pitkanen | Script Supervisor |
| Production | Allegra Clegg | Production Coordinator |
| Sound | Allan Mason | Music Supervisor |
| Crew | James Flamberg | Executive Music Producer |
| Crew | William H. Burton Jr. | Stunt Coordinator |
| Art | Dennis Gassner | Production Design |
| Production | Ellen Chenoweth | Casting |
| Costume & Make-Up | Albert Wolsky | Costume Design |
| Art | Nancy Haigh | Set Decoration |
| Art | Leslie McDonald | Art Direction |
| Costume & Make-Up | J. Roy Helland | Key Hair Stylist |
| Costume & Make-Up | Hallie D'Amore | Makeup Artist |
| Costume & Make-Up | Matthew W. Mungle | Makeup Artist |
| Costume & Make-Up | Kathryn Fenton | Makeup Artist |
| Costume & Make-Up | Shawn McKay | Hairstylist |
| Production | Charles Newirth | Co-Producer |
| Production | Charles Newirth | Production Manager |
| Sound | Gloria S. Borders | Supervising Sound Editor |
| Sound | Richard Beggs | Sound Re-Recording Mixer |
| Sound | Richard Beggs | Sound Designer |
| Sound | Tom Johnson | Sound Re-Recording Mixer |
| Sound | Robert Shoup | Sound Effects Editor |
| Sound | Tim Holland | Sound Effects Editor |
| Art | Martin Kohn | Art Department Coordinator |
| Camera | Eric Engler | Camera Operator |
| Camera | Reggie Newkirk | First Assistant Camera |
| Camera | Bob Stradling | First Assistant Camera |
| Costume & Make-Up | Cynthia L. Hamilton | Assistant Costume Designer |
| Visual Effects | Clay Pinney | Special Effects Supervisor |
| Sound | Stacey A. Foiles | Dialogue Editor |
| Sound | Paige Sartorius | Dialogue Editor |
| Crew | Rob Bottin | Makeup Effects |
