Het verhaal speelt zich af in Xenia, een klein, dodelijk saai stadje in Ohio. De film volgt een aantal randfiguren, onder wie Solomon, een magere 14-jarige met een even verwarde als gewelddadige moeder. Zijn beste vriend, de 19-jarige Tummler, woont bij een holistische vader die zijn gezag allang verloren heeft en nooit over de dood van Tummlers moeder is heen gekomen. De twee vrienden slijten hun dagen met lijm snuiven, voor geld zwerfkatten afmaken en kattenkwaad en ergere streken uithalen. Moreel besef is hen vreemd.
Nee, helaas is Gummo nog niet beschikbaar op Netflix in Nederland.
| Art | Anthony Gasparro | Property Master |
| Directing | Harmony Korine | Director |
| Art | Amy Beth Silver | Art Direction |
| Costume & Make-Up | Mia Thoen | Makeup Artist |
| Sound | Steve Borne | Sound Designer |
| Sound | Reilly Steele | Sound Re-Recording Mixer |
| Writing | Harmony Korine | Writer |
| Camera | Jean-Yves Escoffier | Director of Photography |
| Editing | Christopher Tellefsen | Editor |
| Costume & Make-Up | Chloë Sevigny | Costume Design |
| Art | David Doernberg | Production Design |
| Art | Amy Beth Silver | Set Decoration |
| Sound | Randall Poster | Music Supervisor |
| Production | Robin O'Hara | Co-Producer |
| Production | Scott Macaulay | Co-Producer |
| Production | Ruth Vitale | Executive Producer |
| Production | Stephen Chin | Executive Producer |
| Production | Cary Woods | Producer |
| Directing | Monika Petrillo | Script Supervisor |
| Sound | Leo Madrazo | Foley Artist |
| Sound | Brian Miksis | Sound Mixer |
| Sound | Brian Vancho | Foley Artist |
| Sound | Melissa Zaroff | Sound Editor |
| Directing | Angi Bones | Second Assistant Director |
| Directing | James Clauer | Second Unit Director |
| Directing | Randy Fletcher | First Assistant Director |
| Production | Lyn Richmond | Casting |
| Art | Andrea Stanley | Assistant Art Director |
| Camera | Jacques Jouffret | Steadicam Operator |
| Lighting | Suzanne Carter | Gaffer |
| Production | Nicole Hennessey | Casting Associate |
| Sound | Branka Mrkic | Dialogue Editor |
| Sound | Aaron J. Rudelson | Boom Operator |
| Camera | Bruce Birmelin | Still Photographer |
| Camera | Brian 'Buzz' Buzzelli | Best Boy Grip |
| Camera | Lukas Eder | Additional Camera |
| Camera | Randall Falcon | Camera Loader |
| Camera | Jay Feather | Additional Camera |
| Camera | David Fortino | Dolly Grip |
| Lighting | Kyle D. Hutson | Electrician |
| Camera | Michele McKinley | First Assistant Camera |
| Camera | Nathan Wilson | Second Assistant Camera |
| Camera | Dee Nichols | Key Grip |
| Production | Kelley Sims | Casting Assistant |
| Costume & Make-Up | Paul Sevigny | Wardrobe Assistant |
| Editing | Rodney Evans | Assistant Editor |
| Editing | Chris Hinton | Colorist |
| Editing | Craig Marsden | Assistant Editor |
| Editing | Misako Shimizu | First Assistant Editor |
| Sound | Robin Urdang | Music Coordinator |
| Production | James Clauer | Location Manager |
| Sound | Anne Kugler | Music Consultant |
| Production | Heidi Winston | Production Coordinator |
