Harry en Lloyd zijn twee ongelooflijk domme sukkels, die ontzettend veel moeite hebben om een baan vast te houden. Als Lloyd tijdens zijn korte carrière als limo-chauffeur Mary Swanson naar het vliegveld brengt, ziet hij dat ze haar koffertje vergeet en besluit deze naar haar toe te gaan brengen. Zonder dat hij het weet had Mary het koffertje bewust voor een stel ontvoerders achtergelaten en deze gaan achter Lloyd aan in de veronderstelling dat hij een slinkse crimineel is, die het geld voor hun neus heeft weggekaapt.
Nee, helaas is Dumb and Dumber nog niet beschikbaar op Netflix in Nederland.
| Sound | Todd Rundgren | Original Music Composer |
| Production | Steven Stabler | Producer |
| Production | Charles B. Wessler | Producer |
| Production | Aaron Meyerson | Executive Producer |
| Directing | Peter Farrelly | Director |
| Camera | Mark Irwin | Director of Photography |
| Production | Brad Krevoy | Producer |
| Production | Gerald T. Olson | Executive Producer |
| Editing | Christopher Greenbury | Editor |
| Crew | Glory Fioramonti | Stunts |
| Crew | Dan Bradley | Stunts |
| Crew | Danny Epper | Stunts |
| Crew | Debbie Lee Carrington | Stunts |
| Production | Tracie Graham-Rice | Co-Producer |
| Production | Chad Oman | Associate Producer |
| Production | Ellen Dumouchel | Associate Producer |
| Production | Bradley Thomas | Co-Producer |
| Production | Bobby Farrelly | Co-Producer |
| Production | Bradley Jenkel | Associate Producer |
| Production | Dan Parada | Casting |
| Production | Rick Montgomery | Casting |
| Art | Sydney J. Bartholomew Jr. | Production Design |
| Writing | Bobby Farrelly | Writer |
| Writing | Bennett Yellin | Writer |
| Writing | Peter Farrelly | Writer |
| Art | Karen Beard | Location Scout |
| Crew | Sara King | Post Production Supervisor |
| Production | Rene L. Moreno | Casting Assistant |
| Production | Paris Morgan | Casting Assistant |
| Sound | Dawn Solér | Music Supervisor |
| Costume & Make-Up | Mary Zophres | Costume Design |
| Art | Bradford Johnson | Set Decoration |
| Production | Garrett Grant | Location Manager |
| Art | Arlan Jay Vetter | Art Direction |
| Production | Tracie Graham-Rice | Production Supervisor |
| Production | Gerald T. Olson | Unit Production Manager |
| Production | Wendy Cox | Production Coordinator |
| Art | Lee A. Steadman | Location Scout |
| Art | Julie Anne Moore | Location Scout |
| Directing | Martin Kitrosser | Script Supervisor |
| Art | T'boo Dalton | Art Department Coordinator |
| Art | Rick Chrisman | Construction Foreman |
| Costume & Make-Up | Pauletta O. Lewis | Key Hair Stylist |
| Crew | Jose Luis Alvarado | Driver |
| Art | Lynn Clark | Construction Coordinator |
| Camera | Charles M. Smallwood | Key Grip |
| Crew | Ben Hoopes | Carpenter |
| Art | Richard K. Wright | Property Master |
| Crew | Rick Barker | Stunt Coordinator |
| Sound | Ricardo Broadus | Sound Effects Editor |
| Sound | Jonathon 'Earl' Stein | Sound Mixer |
| Crew | Paul Prokop | Production Controller |
| Crew | Alex L. Worman | Unit Publicist |
| Sound | Joe Kraemer | Dialogue Editor |
| Crew | Cindy Fischer | Studio Teachers |
| Crew | Matthew W. Mungle | Makeup Effects |
| Crew | Rolf Sigurd Brekke | Stand In |
| Sound | Cathie Speakman | Sound Editor |
| Crew | Frank Ceglia | Special Effects Coordinator |
| Sound | Tim Gedemer | Sound Designer |
| Crew | Dennis Davidson | Public Relations |
| Crew | Lori A. Ellington | Set Medic |
| Sound | Flash Deros | Boom Operator |
| Sound | Craig Clark | Supervising Sound Editor |
| Costume & Make-Up | Brenda McNally | Hairstylist |
| Camera | Sandy Bloom | Grip |
| Costume & Make-Up | Brenda McNally | Makeup Artist |
| Crew | David Paul Lord | Stunts |
| Crew | Michael Merrick | Transportation Captain |
| Production | Deborah Moore | Executive In Charge Of Production |
| Crew | Gordie Merrick | Transportation Coordinator |
| Lighting | Jay W. Yowler | Gaffer |
| Camera | Gary Katsuya Ushino | First Assistant Camera |
| Directing | J.B. Rogers | First Assistant Director |
| Editing | Mato | Color Timer |
| Production | Diana Adams | Production Accountant |
| Art | Ed Bodily | Painter |
| Crew | Josie Fife | Craft Service |
| Lighting | John Ditomaso | Best Boy Electric |
| Sound | Joe E. Rand | Music Editor |
| Costume & Make-Up | Michael Budge | Set Dressing Artist |
| Crew | Craig Comstock | Set Production Assistant |
| Camera | Matt Irwin | Clapper Loader |
| Sound | Gregg Barbanell | Foley Artist |
| Crew | Mark R. Byers | Special Effects Assistant |
| Production | Bryan C. Alford | Production Assistant |
| Sound | Terry O'Bright | ADR Mixer |
| Production | Donna B. Brown | Location Coordinator |
| Directing | Denise Strong | Second Second Assistant Director |
| Visual Effects | Adam Howard | Visual Effects Compositor |
| Camera | Jeffrey N. Civa | Second Assistant Camera |
| Production | Mimi Davis-Taylor | Location Assistant |
| Sound | Eric Thompson | Foley Mixer |
| Directing | Gerald T. Olson | Second Unit Director |
| Camera | Charles A. Harris | Best Boy Grip |
| Production | John L. Anderson | Assistant Production Coordinator |
| Crew | Bonnie DeChant | Catering |
| Art | Frank Rosen | Assistant Property Master |
| Sound | James B. Hare | ADR Recordist |
| Camera | Loren Hillebrand | Dolly Grip |
| Editing | Carter DeHaven | Assistant Editor |
| Sound | Marcus Barone | Music Coordinator |
| Costume & Make-Up | Cheryl Voss | Assistant Makeup Artist |
| Camera | Egor Davidoff | Camera Loader |
| Art | Kevin Farrell | Storyboard Artist |
| Editing | Jane Archambault | Negative Cutter |
| Costume & Make-Up | Pamela Withers | Wardrobe Supervisor |
| Crew | David Normand | Aerial Coordinator |
| Sound | Robert Guastini | ADR Editor |
| Production | Leon Dudevoir | Production Executive |
| Crew | Rick Baily | Security Coordinator |
| Production | Denverly Grant | Production Secretary |
| Crew | Michael Parkhurst | Technical Advisor |
| Production | David Collins | Production Supervisor |
| Crew | Robert Conder | Stunts |
| Crew | Jim Dirker | Stunts |
| Crew | Frank Ceglia | Stunts |
| Crew | Billy Judkins | Stunts |
| Crew | Paul M. Lane | Stunts |
| Crew | Norman Howell | Stunts |
| Crew | Bob Terhune | Stunts |
| Crew | John Branagan | Stunts |
| Crew | Don Shanks | Stunts |
