Lloyd and Harry are two men whose stupidity is really indescribable. When Mary, a beautiful woman, loses an important suitcase with money before she leaves for Aspen, the two friends (who have found the suitcase) decide to return it to her. After some "adventures" they finally get to Aspen where, using the lost money they live it up and fight for Mary's heart.
You can now watch Dumb and Dumber online on the following streaming providers in the United States.
| Production | Rick Montgomery | Casting |
| Directing | Peter Farrelly | Director |
| Production | Brad Krevoy | Producer |
| Sound | Todd Rundgren | Original Music Composer |
| Production | Aaron Meyerson | Executive Producer |
| Camera | Mark Irwin | Director of Photography |
| Production | Gerald T. Olson | Executive Producer |
| Editing | Christopher Greenbury | Editor |
| Production | Charles B. Wessler | Producer |
| Production | Steven Stabler | Producer |
| Writing | Peter Farrelly | Writer |
| Production | Bobby Farrelly | Co-Producer |
| Production | Tracie Graham-Rice | Co-Producer |
| Production | Bradley Thomas | Co-Producer |
| Production | Ellen Dumouchel | Associate Producer |
| Production | Bradley Jenkel | Associate Producer |
| Production | Chad Oman | Associate Producer |
| Production | Dan Parada | Casting |
| Art | Sydney J. Bartholomew Jr. | Production Design |
| Writing | Bobby Farrelly | Writer |
| Writing | Bennett Yellin | Writer |
| Production | Rene L. Moreno | Casting Assistant |
| Production | Gerald T. Olson | Unit Production Manager |
| Production | Garrett Grant | Location Manager |
| Sound | Dawn Solér | Music Supervisor |
| Art | Arlan Jay Vetter | Art Direction |
| Costume & Make-Up | Mary Zophres | Costume Design |
| Production | Paris Morgan | Casting Assistant |
| Art | Lee A. Steadman | Location Scout |
| Art | Julie Anne Moore | Location Scout |
| Art | Karen Beard | Location Scout |
| Directing | Martin Kitrosser | Script Supervisor |
| Art | Bradford Johnson | Set Decoration |
| Production | Wendy Cox | Production Coordinator |
| Production | Tracie Graham-Rice | Production Supervisor |
| Crew | Sara King | Post Production Supervisor |
| Art | T'boo Dalton | Art Department Coordinator |
| Costume & Make-Up | Brenda McNally | Hairstylist |
| Camera | Gary Katsuya Ushino | First Assistant Camera |
| Art | Ed Bodily | Painter |
| Art | Lynn Clark | Construction Coordinator |
| Art | Rick Chrisman | Construction Foreman |
| Camera | Sandy Bloom | Grip |
| Camera | Charles M. Smallwood | Key Grip |
| Production | Deborah Moore | Executive In Charge Of Production |
| Crew | Lori A. Ellington | Set Medic |
| Crew | Michael Merrick | Transportation Captain |
| Sound | Ricardo Broadus | Sound Effects Editor |
| Crew | Ben Hoopes | Carpenter |
| Crew | Craig Comstock | Set Production Assistant |
| Art | Richard K. Wright | Property Master |
| Crew | Josie Fife | Craft Service |
| Crew | Alex L. Worman | Unit Publicist |
| Costume & Make-Up | Michael Budge | Set Dressing Artist |
| Sound | Joe E. Rand | Music Editor |
| Costume & Make-Up | Pauletta O. Lewis | Key Hair Stylist |
| Crew | David Paul Lord | Stunts |
| Sound | Cathie Speakman | Sound Editor |
| Sound | Jonathon 'Earl' Stein | Sound Mixer |
| Sound | Joe Kraemer | Dialogue Editor |
| Editing | Mato | Color Timer |
| Production | Diana Adams | Production Accountant |
| Sound | Flash Deros | Boom Operator |
| Crew | Frank Ceglia | Special Effects Coordinator |
| Crew | Rolf Sigurd Brekke | Stand In |
| Crew | Dennis Davidson | Public Relations |
| Crew | Cindy Fischer | Studio Teachers |
| Costume & Make-Up | Brenda McNally | Makeup Artist |
| Crew | Jose Luis Alvarado | Driver |
| Lighting | Jay W. Yowler | Gaffer |
| Sound | Tim Gedemer | Sound Designer |
| Crew | Paul Prokop | Production Controller |
| Crew | Rick Barker | Stunt Coordinator |
| Sound | Craig Clark | Supervising Sound Editor |
| Crew | Matthew W. Mungle | Makeup Effects |
| Crew | Gordie Merrick | Transportation Coordinator |
| Directing | J.B. Rogers | First Assistant Director |
| Lighting | John Ditomaso | Best Boy Electric |
| Directing | Gerald T. Olson | Second Unit Director |
| Editing | Jane Archambault | Negative Cutter |
| Production | Leon Dudevoir | Production Executive |
| Costume & Make-Up | Cheryl Voss | Assistant Makeup Artist |
| Sound | Eric Thompson | Foley Mixer |
| Crew | Mark R. Byers | Special Effects Assistant |
| Costume & Make-Up | Pamela Withers | Wardrobe Supervisor |
| Editing | Carter DeHaven | Assistant Editor |
| Camera | Matt Irwin | Clapper Loader |
| Sound | Terry O'Bright | ADR Mixer |
| Directing | Denise Strong | Second Second Assistant Director |
| Art | Frank Rosen | Assistant Property Master |
| Sound | Gregg Barbanell | Foley Artist |
| Visual Effects | Adam Howard | Visual Effects Compositor |
| Camera | Loren Hillebrand | Dolly Grip |
| Production | Mimi Davis-Taylor | Location Assistant |
| Sound | Robert Guastini | ADR Editor |
| Camera | Charles A. Harris | Best Boy Grip |
| Camera | Jeffrey N. Civa | Second Assistant Camera |
| Sound | James B. Hare | ADR Recordist |
| Production | Bryan C. Alford | Production Assistant |
| Crew | David Normand | Aerial Coordinator |
| Production | John L. Anderson | Assistant Production Coordinator |
| Crew | Bonnie DeChant | Catering |
| Production | Denverly Grant | Production Secretary |
| Sound | Marcus Barone | Music Coordinator |
| Crew | Michael Parkhurst | Technical Advisor |
| Camera | Egor Davidoff | Camera Loader |
| Art | Kevin Farrell | Storyboard Artist |
| Crew | Rick Baily | Security Coordinator |
| Production | Donna B. Brown | Location Coordinator |
| Production | David Collins | Production Supervisor |
| Crew | Glory Fioramonti | Stunts |
| Crew | Dan Bradley | Stunts |
| Crew | Danny Epper | Stunts |
| Crew | Debbie Lee Carrington | Stunts |
