A Heffley family road trip to attend Meemaw's 90th birthday party goes hilariously off course thanks to Greg's newest scheme to get to a video gaming convention.
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| Crew | Scott Christopher Kelly | Stand In |
| Sound | Jason Swanscott | Foley Artist |
| Sound | Adam Bourne | Foley Editor |
| Costume & Make-Up | Leay Cangelosi | Hairstylist |
| Costume & Make-Up | Adruitha Lee | Hair Department Head |
| Costume & Make-Up | Jennifer Hodges | Hairstylist |
| Costume & Make-Up | Moe Coles | Hairstylist |
| Sound | Peter Burgis | Foley Artist |
| Sound | Zoe Freed | Foley Artist |
| Costume & Make-Up | Linda Traxler | Hairstylist |
| Costume & Make-Up | Michealle Vanderpool | Hairstylist |
| Sound | Renée Tondelli | ADR Editor |
| Sound | Glen Gathard | Foley Mixer |
| Camera | Grady Allen Bishop | Camera Car |
| Crew | Grady Allen Bishop | Stunts |
| Art | Kristen Jenkins | Set Designer |
| Art | David Mathew Weeks | Set Dresser |
| Sound | Wayne Lemmer | Supervising Sound Editor |
| Art | Amber Goodrum | Set Dresser |
| Costume & Make-Up | Sara Cobbeldick | Set Costumer |
| Art | Jonathan Dossman | Set Dresser |
| Costume & Make-Up | Melanie Deforrest | Makeup Artist |
| Costume & Make-Up | Chris Diamantides | Makeup Artist |
| Visual Effects | Robin Scott Graham | Visual Effects Supervisor |
| Costume & Make-Up | K. Drew Fuller | Costume Supervisor |
| Costume & Make-Up | Jessie Gambardella | Makeup Artist |
| Costume & Make-Up | Les Morgan | Set Costumer |
| Visual Effects | Manuela Cripps | Visual Effects Producer |
| Sound | Marc Glassman | Sound Designer |
| Sound | Wayne Lemmer | Sound Re-Recording Mixer |
| Visual Effects | Bobo Skipper | Visual Effects Supervisor |
| Costume & Make-Up | Korii Young | Set Costumer |
| Costume & Make-Up | Travis Pates | Makeup Department Head |
| Art | Danny Brown | Assistant Art Director |
| Art | Jeff Ginn | Assistant Art Director |
| Costume & Make-Up | Joulles Wright | Costume Supervisor |
| Art | Jason Vigdor | Set Dresser |
| Sound | Derek Vanderhorst | Sound Re-Recording Mixer |
| Visual Effects | Wes Dorough | Visual Effects Producer |
| Visual Effects | Tim LeDoux | Visual Effects Supervisor |
| Visual Effects | Chris LeDoux | Visual Effects Supervisor |
| Art | Cara Price | Set Decoration Buyer |
| Costume & Make-Up | Reese Spensley | Set Costumer |
| Sound | Derek Vanderhorst | Supervising Sound Editor |
| Camera | Anthony B. Richmond | Director of Photography |
| Editing | Troy Takaki | Editor |
| Production | Nina Jacobson | Producer |
| Production | Brad Simpson | Producer |
| Writing | Jeff Kinney | Book |
| Directing | David Bowers | Director |
| Sound | Edward Shearmur | Original Music Composer |
| Sound | Tom Brown | Music Arranger |
| Art | Tasha Clarkson | Set Decoration |
| Costume & Make-Up | Mary Claire Hannan | Costume Design |
| Production | Courtney Bright | Casting |
| Art | Erin Cochran | Art Direction |
| Production | David Bowers | Executive Producer |
| Production | Heath M. Howard | Associate Producer |
| Writing | David Bowers | Writer |
| Production | Jeff Kinney | Executive Producer |
| Production | Timothy M. Bourne | Executive Producer |
| Art | Aaron Osborne | Production Design |
| Production | Nicole Daniels | Casting |
| Writing | Jeff Kinney | Writer |
