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 |
| Crew | Joe Bucaro III | Stunts |
| Crew | Jimmy Ortega | Stunts |
| Production | Elizabeth Avellan | Producer |
| Production | Carlos Gallardo | Producer |
| Production | Sue Jett | Co-Producer |
| Production | Tony Mark | Co-Producer |
| Production | Robert Rodriguez | Producer |
| Production | Luz María Rojas | Co-Producer |
| Production | Mary Vernieu | Casting |
| Art | Robert Rodriguez | Production Design |
| Art | Melo Hinojosa | Art Direction |
| Art | Eva Castro | Set Decoration |
| Art | Patrice Laure | Set Decoration |
| Costume & Make-Up | Graciela Mazón | Costume Design |
| Costume & Make-Up | Carmen de la Torre | Hairstylist |
| Costume & Make-Up | Carmen de la Torre | Makeup Artist |
| Costume & Make-Up | Roxie Hodenfield | Hair Department Head |
| Costume & Make-Up | Sandra Migueli | Makeup Artist |
| Costume & Make-Up | Ermahn Ospina | Makeup Department Head |
| Production | Jane Nerlinger Evans | Executive In Charge Of Production |
| Production | Tony Mark | Unit Production Manager |
| Crew | Brian McNulty | Post Production Supervisor |
| Directing | Brian Bettwy | First Assistant Director |
| Directing | Korey Scott Pollard | Second Assistant Director |
| Art | Carlos Azucena | Assistant Property Master |
| Art | Carlos Benassini | Assistant Art Director |
| Art | Kevin Berve | Assistant Property Master |
| Art | Caylah Eddleblute | Property Master |
| Art | Kara Sutherlin | Standby Painter |
| Art | Alberto Villaseñor | Construction Coordinator |
| Sound | Dean Beville | Sound Designer |
| Sound | Matthew C. Beville | Foley Editor |
| Sound | Mike Chock | Sound Effects Editor |
| Sound | John Dunn | Sound Effects Editor |
| Sound | William Jacobs | Sound Designer |
| Editing | Val Kuklowsky | Dialogue Editor |
| Sound | Sean Landeros | Sound Recordist |
| Sound | James J. Mase | Boom Operator |
| Sound | Ernesto Muñoz | Boom Operator |
| Sound | Ed Novick | Production Sound Mixer |
| Sound | Sergio Reyes | Sound Re-Recording Mixer |
| Sound | Robert Rodriguez | Sound Re-Recording Mixer |
| Sound | Robert Rodriguez | Sound Effects Editor |
| Editing | Charles Ewing Smith | Dialogue Editor |
| Crew | Sergio Jara | Special Effects Coordinator |
| Crew | Mike Reedy | Special Effects Coordinator |
| Art | King Orba | Set Dresser |
| Crew | Troy Robinson | Stunt Coordinator |
| Camera | Robert Rodriguez | Director of Photography |
| Crew | Jeffrey J. Dashnaw | Stunt Coordinator |
