Greg Heffley heeft er alles voor over heeft om populair te worden bij zijn klasgenootjes. Hij begint zijn beste vriend Rowley, een slimme en mollige maar ook wat klunzige jongen, te ontwijken om zijn reputatie te verdedigen. Zijn verlangen naar populariteit komt Greg al snel duur te staan waardoor hij zich eenzaam gaat voelen...
Nee, helaas is Het leven van een loser nog niet beschikbaar op Netflix in Nederland.
| Directing | Thor Freudenthal | Director |
| Writing | Jackie Filgo | Screenplay |
| Writing | Jeff Filgo | Screenplay |
| Crew | Doug Chapman | Stunts |
| Writing | Gabe Sachs | Screenplay |
| Writing | Jeff Judah | Screenplay |
| Writing | Jeff Kinney | Book |
| Production | Nina Jacobson | Producer |
| Production | Brad Simpson | Producer |
| Production | Jeff Kinney | Executive Producer |
| Camera | Jack N. Green | Director of Photography |
| Art | Brent Thomas | Production Design |
| Editing | Wendy Greene Bricmont | Editor |
| Production | Ethan Smith | Co-Producer |
| Sound | Julia Michels | Music Supervisor |
| Costume & Make-Up | Monique Prudhomme | Costume Design |
| Production | Ronna Kress | Casting |
| Production | Coreen Mayrs | Casting |
| Production | Heike Brandstatter | Casting |
| Production | Warren Carr | Unit Production Manager |
| Directing | Pete Whyte | First Assistant Director |
| Directing | Cindy Smith | Second Assistant Director |
| Crew | Dave Hospes | Stunt Coordinator |
| Crew | Paul Becker | Choreographer |
| Art | Shannon Grover | Art Direction |
| Art | Anneke Van Oort | Set Designer |
| Art | Cheryl Marion | Assistant Art Director |
| Directing | Haylee Thompson | Third Assistant Director |
| Camera | Ryan Green | Camera Operator |
| Camera | Timothy Robin Spencer | First Assistant Camera |
| Camera | Jim Van Dijk | Camera Operator |
| Camera | Tenzin Lhalungpa | Camera Operator |
| Camera | Rob McEwan | Still Photographer |
| Sound | Darren Brisker | Production Sound Mixer |
| Sound | Michael Hibberson | Boom Operator |
| Art | David Dowling | Property Master |
| Art | Wes Hamby | Assistant Property Master |
| Art | Spencer Louttit | Assistant Property Master |
| Art | Mary-Lou Storey | Set Decoration |
| Art | Lorne Poole | Set Dresser |
| Art | Tamara Gauthier | Set Dresser |
| Art | Mark Morgan | Set Dresser |
| Editing | Robert Komatsu | Additional Editing |
| Editing | Carolyn Calvert | First Assistant Editor |
| Sound | Amanda Goodpaster | Music Editor |
| Sound | Elliott Koretz | Sound Designer |
| Sound | Anna Behlmer | Sound Re-Recording Mixer |
| Sound | James Bolt | Sound Re-Recording Mixer |
| Visual Effects | Mike L. Murphy | Animation Supervisor |
| Visual Effects | Mark Dornfeld | Visual Effects Supervisor |
| Visual Effects | Christopher Cundey | Visual Effects Producer |
| Sound | Nancy Nugent Title | Supervising Dialogue Editor |
| Sound | Nancy Nugent Title | Supervising ADR Editor |
| Sound | Donald Flick | Sound Effects Editor |
| Lighting | John Helme | Gaffer |
| Camera | Dillard Brinson | Key Grip |
| Costume & Make-Up | Debbie Douglas | Assistant Costume Designer |
| Costume & Make-Up | Patricia L. Galbraith | Costume Coordinator |
| Costume & Make-Up | Eileen Gano | Set Costumer |
| Costume & Make-Up | Wendy Foster | Seamstress |
| Costume & Make-Up | Lisa Love | Key Makeup Artist |
| Costume & Make-Up | Donna Bis | Key Hair Stylist |
| Production | S. Steven Sach | Location Manager |
| Production | Deana Kittson | Production Coordinator |
| Crew | Tony Lazarowich | Special Effects Coordinator |
| Crew | Kurt Jackson | Special Effects |
| Art | Jesse Joslin | Construction Coordinator |
| Crew | Chris Flemington | Special Effects |
| Art | Rob Dampier | Construction Foreman |
| Production | Susanne Scheel | Casting Associate |
| Production | Amy Nygaard | Casting Associate |
| Production | Kathleen Chopin | Local Casting |
| Crew | Mike Sassen | Transportation Coordinator |
| Crew | Steve Siegel | Transportation Captain |
| Crew | Patricia Johnson | Unit Publicist |
| Crew | Riley Kathryn Ellis | Thanks |
| Sound | Josephine Nericcio | Assistant Sound Editor |
| Sound | Theodore Shapiro | Original Music Composer |
| Production | Johnny Gidcomb | ADR Voice Casting |
| Directing | Ruby J. Munro | Script Supervisor |
| Crew | Marny Eng | Stunts |
| Crew | Duane Dickinson | Stunts |
| Art | Annie Josephine Rhodes | Assistant Property Master |
