Een vreemd ongeluk brengt een ernstig zieke wiskundige, een rouwende moeder en een herboren ex-gevangene samen in een verhaal dat hun emotioneel en fysiek beladen levens toont. Hoewel ze elkaar niet kennen, wordt het trio onherroepelijk verstrengeld in een mix van liefde, verlossing en obsessie.
Nee, helaas is 21 Grams nog niet beschikbaar op Netflix in Nederland.
| Directing | Alejandro González Iñárritu | Director |
| Production | Francine Maisler | Casting |
| Art | Deborah Riley | Art Direction |
| Production | Robert Salerno | Producer |
| Camera | Rodrigo Prieto | Director of Photography |
| Production | Alejandro González Iñárritu | Producer |
| Production | Ted Hope | Executive Producer |
| Editing | Stephen Mirrione | Editor |
| Art | Brigitte Broch | Production Design |
| Costume & Make-Up | Marlene Stewart | Costume Design |
| Sound | Gustavo Santaolalla | Original Music Composer |
| Art | Meg Everist | Set Decoration |
| Costume & Make-Up | Laurel Van Dyke | Hairstylist |
| Crew | Tim Pedegana | Post Production Supervisor |
| Costume & Make-Up | Luisa Abel | Makeup Department Head |
| Production | Diane L. Sabatini | Production Supervisor |
| Costume & Make-Up | Vivian Baker | Key Makeup Artist |
| Production | Amy J. Kaufman | Executive In Charge Of Production |
| Costume & Make-Up | Gail Rowell-Ryan | Hair Department Head |
| Writing | Guillermo Arriaga | Writer |
| Production | Guillermo Arriaga | Associate Producer |
| Costume & Make-Up | Gloria Belz | Makeup Artist |
| Costume & Make-Up | Vivian Baker | Prosthetic Makeup Artist |
| Costume & Make-Up | Jolynn Nieto | Hairstylist |
| Production | Robert Salerno | Unit Production Manager |
| Directing | Eva Z. Cabrera | Script Supervisor |
| Camera | Glenn Kaplan | First Assistant "B" Camera |
| Camera | Michael Cruickshank | Camera Loader |
| Directing | Kiersten Pilar Miller | Second Assistant Director |
| Crew | David M. Graves | Stunts |
| Crew | Chandra De Alessandro | Stunts |
| Camera | Jay Levy | First Assistant "A" Camera |
| Directing | Kenneth Roth | Second Assistant Director |
| Crew | Andy Gill | Stunts |
| Camera | Diego Quemada-Díez | Camera Operator |
| Crew | Peewee Piemonte | Stunts |
| Sound | Martín Hernández | Supervising Sound Editor |
| Camera | Mark Karavite | Steadicam Operator |
| Crew | Gilbert B. Combs | Stunts |
| Art | Thomas Betts | Set Designer |
| Camera | Xavier Grobet | Camera Operator |
| Crew | Paul Murphey | Video Assist Operator |
| Directing | Michael E. Steele | First Assistant Director |
| Camera | Lisa Guerriero | Second Assistant Camera |
| Crew | Chris Durand | Stunts |
| Crew | Spiro Razatos | Stunt Coordinator |
| Camera | Xavier Grobet | Second Unit Director of Photography |
| Directing | James Alan Hensz | First Assistant Director |
| Camera | David J. Thompson | Steadicam Operator |
| Sound | Jonathan Fuh | Boom Operator |
| Sound | José Antonio García | Sound Mixer |
| Lighting | Robby Baumgartner | Gaffer |
| Lighting | Lee McLemore | Rigging Grip |
| Costume & Make-Up | Mark Peterson | Costume Supervisor |
| Crew | Andy Brokmeyer | Cableman |
| Camera | Joseph Dianda | Key Grip |
| Lighting | Peter Walts | Best Boy Electric |
| Editing | Douglas Crise | Assistant Editor |
| Editing | Keith H. Sauter | Assistant Editor |
| Lighting | Anthony 'Spike' Simms | Rigging Gaffer |
| Costume & Make-Up | Riki Lin Sabusawa | Costume Supervisor |
| Costume & Make-Up | Phillip Howard | Set Costumer |
| Sound | Anibal Kerpel | Music Editor |
| Art | Cynthia Nibler | Property Master |
| Costume & Make-Up | Ira M. Hammons-Glass | Costumer |
| Sound | Lynn Fainchtein | Music Supervisor |
| Costume & Make-Up | Holly Davis | Key Costumer |
| Costume & Make-Up | Nancy Collini | Set Costumer |
| Editing | Brian Ufberg | Assistant Editor |
| Art | Allison Gross | Assistant Property Master |
| Production | J. Elizabeth Ingram | Production Secretary |
| Production | Robyn Adams | Production Secretary |
| Crew | Gary Pilkinton | Special Effects Technician |
| Production | Damon Michael Gordon | Assistant Location Manager |
| Art | Alex Blagg | Location Scout |
| Production | Len Murach | Location Manager |
| Production | Melinka Thompson-Godoy | Location Coordinator |
| Crew | Thomas Kittle | Special Effects Technician |
| Production | Day Permuy | Assistant Production Coordinator |
| Production | Tony Hernandez | Location Assistant |
| Production | Steve Cainas | Production Coordinator |
| Production | Sarah Tackett | Location Casting |
| Crew | Sato Masuzawa | Actor's Assistant |
| Crew | Annaliese Levy | Actor's Assistant |
| Crew | Tyrel Ventura | Actor's Assistant |
| Crew | Janey Bergam | Actor's Assistant |
| Sound | Roland N. Thai | Sound Designer |
| Crew | Jeanette Agaronoff | Actor's Assistant |
| Art | Troy Borisy | Leadman |
| Sound | Martín Hernández | Sound Designer |
| Sound | Jon Taylor | Sound Re-Recording Mixer |
| Sound | Brad Sherman | Sound Re-Recording Mixer |
| Sound | Michael Mullane | Sound Editor |
| Sound | Sergio Díaz | Sound Editor |
| Sound | James Moriana | Foley Artist |
| Camera | Jim Sheldon | Still Photographer |
| Sound | Ron Bedrosian | ADR Mixer |
| Production | Jill Rosenblatt | First Assistant Accountant |
| Editing | Steve Bowen | Colorist |
| Crew | Lucas Moore | Studio Teacher |
| Editing | Paul Tanzillo Jr. | Negative Cutter |
| Art | Thomas Michael Ryan | Construction Foreman |
| Sound | Robert Getty | Sound Editor |
| Sound | Christopher Sidor | Sound Recordist |
| Sound | Julio Carmona | ADR Recordist |
| Production | Jennifer Hunt Pedevilla | Payroll Accountant |
| Camera | Merrick Morton | Still Photographer |
| Sound | Jeffrey Wilhoit | Foley Artist |
| Crew | Tom Moore | Transportation Captain |
| Production | Mary Sunshine | Production Accountant |
| Crew | Jerry Jackson | Transportation Coordinator |
| Production | Barbara Harris | ADR Voice Casting |
| Art | Jeffrey Schlatter | Construction Coordinator |
| Sound | Michael Hertlein | Sound Editor |
| Sound | Nerses Gezalyan | Foley Mixer |
| Editing | Hilda Saffari | Digital Intermediate Producer |
| Sound | Trevor Ward | Dolby Consultant |
| Crew | Jack Gill | Stunts |
