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