El Mariachi volgt het spoor van drugsbaas Barrillo door het woeste landschap van Mexico. Barrillo is van plan een coup te plegen tegen de Mexicaanse president. El Mariachi is ingehuurd door de corrupte CIA-agent Sands, die uit is op vergelding tegen zijn grootste vijand.
Nee, helaas is Once Upon a Time in Mexico nog niet beschikbaar op Netflix in Nederland.
| Directing | Robert Rodriguez | Director |
| Writing | Robert Rodriguez | Screenplay |
| Editing | Robert Rodriguez | Editor |
| Sound | Robert Rodriguez | Original Music Composer |
| Costume & Make-Up | Carmen de la Torre | Makeup Artist |
| Production | Luz María Rojas | Co-Producer |
| Art | Robert Rodriguez | Production Design |
| Sound | James J. Mase | Boom Operator |
| Sound | Robert Rodriguez | Sound Effects Editor |
| Editing | Charles Ewing Smith | Dialogue Editor |
| Production | Mary Vernieu | Casting |
| Production | Tony Mark | Unit Production Manager |
| Sound | Ed Novick | Production Sound Mixer |
| Sound | John Dunn | Sound Effects Editor |
| Production | Elizabeth Avellan | Producer |
| Art | Eva Castro | Set Decoration |
| Costume & Make-Up | Graciela Mazón | Costume Design |
| Costume & Make-Up | Roxie Hodenfield | Hair Department Head |
| Production | Jane Nerlinger Evans | Executive In Charge Of Production |
| Art | Carlos Azucena | Assistant Property Master |
| Art | Kevin Berve | Assistant Property Master |
| Sound | Matthew C. Beville | Foley Editor |
| Sound | Sean Landeros | Sound Recordist |
| Sound | William Jacobs | Sound Designer |
| Art | Melo Hinojosa | Art Direction |
| Sound | Dean Beville | Sound Designer |
| Sound | Robert Rodriguez | Sound Re-Recording Mixer |
| Crew | Mike Reedy | Special Effects Coordinator |
| Crew | Robert Rodriguez | Cinematography |
| Directing | Brian Bettwy | First Assistant Director |
| Art | Carlos Benassini | Assistant Art Director |
| Art | Kara Sutherlin | Standby Painter |
| Editing | Val Kuklowsky | Dialogue Editor |
| Sound | Ernesto Muñoz | Boom Operator |
| Crew | Brian McNulty | Post Production Supervisor |
| Sound | Mike Chock | Sound Effects Editor |
| Production | Tony Mark | Co-Producer |
| Costume & Make-Up | Sandra Migueli | Makeup Artist |
| Costume & Make-Up | Ermahn Ospina | Makeup Department Head |
| Sound | Sergio Reyes | Sound Re-Recording Mixer |
| Production | Carlos Gallardo | Producer |
| Production | Sue Jett | Co-Producer |
| Production | Robert Rodriguez | Producer |
| Art | Patrice Laure | Set Decoration |
| Art | Alberto Villaseñor | Construction Coordinator |
| Directing | Korey Scott Pollard | Second Assistant Director |
| Costume & Make-Up | Carmen de la Torre | Hairstylist |
| Art | Caylah Eddleblute | Property Master |
| Crew | Sergio Jara | Special Effects Coordinator |
| Art | King Orba | Set Dresser |
| Crew | Troy Robinson | Stunt Coordinator |
| Crew | Jeffrey J. Dashnaw | Stunt Coordinator |
| Crew | Joe Bucaro III | Stunts |
| Crew | Jimmy Ortega | Stunts |
