Julius and Vincent Benedict are the results of an experiment that would allow for the perfect child. Julius was planned and grows to athletic proportions. Vincent is an accident and is somewhat smaller in stature. Vincent is placed in an orphanage while Julius is taken to a south seas island and raised by philosophers. Vincent becomes the ultimate low life and is about to be killed by loan sharks.
Unfortunately the movie Twins is not yet available on HBO Max.
| Directing | Ivan Reitman | Director |
| Camera | Andrzej Bartkowiak | Director of Photography |
| Editing | Donn Cambern | Editor |
| Writing | William Osborne | Screenplay |
| Writing | Timothy Harris | Screenplay |
| Production | Ivan Reitman | Producer |
| Editing | Sheldon Kahn | Editor |
| Writing | William Davies | Screenplay |
| Production | Michael C. Gross | Executive Producer |
| Production | Joe Medjuck | Executive Producer |
| Writing | Herschel Weingrod | Screenplay |
| Crew | Lane Leavitt | Stunts |
| Art | James D. Bissell | Production Design |
| Sound | Georges Delerue | Original Music Composer |
| Production | Michael Chinich | Casting |
| Costume & Make-Up | Gloria Gresham | Costume Design |
| Sound | Randy Edelman | Original Music Composer |
| Art | John T. Walker | Set Decoration |
| Art | Christopher Burian-Mohr | Art Direction |
| Costume & Make-Up | Robert Ostermann | Hairstylist |
| Directing | Peter Giuliano | First Assistant Director |
| Production | Gordon A. Webb | Associate Producer |
| Sound | Peter Afterman | Music Supervisor |
| Crew | Steve Boyum | Stunts |
| Production | Gordon A. Webb | Unit Production Manager |
| Crew | Bobby Bass | Stunts |
| Editing | Debra Bard | Assistant Editor |
| Directing | Wilma Garscadden-Gahret | Script Supervisor |
| Directing | Barry K. Thomas | Second Assistant Director |
| Directing | Linnea Ebba Wicklund | Second Second Assistant Director |
| Costume & Make-Up | Peter Tothpal | Hairstylist |
| Directing | Ira S. Rosenstein | Second Second Assistant Director |
| Production | William Goldman | Script Researcher |
| Costume & Make-Up | Leonard Engelman | Makeup Artist |
| Production | Sheldon Kahn | Associate Producer |
| Costume & Make-Up | Judith A. Cory | Hairstylist |
| Costume & Make-Up | Katherine Kotarakos | Makeup Artist |
| Costume & Make-Up | Peggy Semtob | Hairstylist |
| Crew | Joel Kramer | Stunt Coordinator |
| Crew | Debbie Evans | Stunt Driver |
| Crew | Joel Kramer | Stunt Double |
| Crew | Stephanie Epper | Stunts |
| Crew | Marguerite Happy | Stunts |
| Crew | Sandra Lee Gimpel | Stunts |
| Crew | Peter Kent | Stunt Double |
| Crew | Donna Garrett | Stunts |
| Crew | Nick Dimitri | Stunts |
| Camera | Dustin Blauvelt | Camera Operator |
| Camera | Toby Phillips | Steadicam Operator |
| Camera | Bruce McBroom | Still Photographer |
| Art | Steven Lee Baer | Set Dresser |
| Art | Stuart Watnick | Assistant Property Master |
| Art | Ed Verreaux | Set Designer |
| Costume & Make-Up | Jeff Dawn | Makeup Artist |
| Art | Bill MacSems | Property Master |
| Art | Robert G. Santarella | Set Dresser |
| Production | Pamela Cederquist | Production Coordinator |
| Sound | Steve Cantamessa | Boom Operator |
| Costume & Make-Up | Adrienne Manhan | Costumer |
| Art | Gordon Meloeny | Set Dresser |
| Art | Bryan D. Garofalo | Set Dresser |
| Production | Pamela Easley | Production Coordinator |
| Art | Nancy Patton | Set Designer |
| Art | Hope M. Parrish | Assistant Property Master |
| Art | William James Teegarden | Set Designer |
| Production | Ellen Adolph | Production Accountant |
| Crew | Mark Jennings | Cableman |
| Sound | Gene S. Cantamessa | Sound Mixer |
| Art | Tom Miller | Assistant Property Master |
| Production | Stuart Fink | Publicist |
| Sound | Don S. Walden | Sound Effects Editor |
| Production | Dorothy O'Leary | Casting Assistant |
| Sound | Edward Rossi | Sound Effects Editor |
| Sound | William Hartman | Sound Effects Editor |
| Sound | Fred Judkins | Supervising Sound Editor |
| Sound | Joe Gilbert | ADR Editor |
| Sound | Jeff Rosen | Sound Effects Editor |
| Sound | David Williams | Sound Effects Editor |
| Sound | Mark Gordon | Sound Effects Editor |
| Sound | Mary Ruth Smith | Sound Effects Editor |
| Sound | Richard Friedman | Supervising ADR Editor |
| Sound | Tom McCarthy Jr. | Supervising Sound Editor |
| Sound | David M. Ice | Sound Effects Editor |
| Crew | Tom Buffum | Special Sound Effects |
| Editing | Saul Saladow | Assistant Editor |
| Lighting | Rick A. Benedetto | Electrician |
| Camera | Hank Sheppherd | Second Company Grip |
| Camera | William Kenney | Dolly Grip |
| Art | Eero Hautanen | Construction Foreman |
| Crew | Marlo Hellerstein | Transportation Captain |
| Art | Francis N. 'Lucky' Costello | Standby Painter |
| Production | Dylan Gross | Production Assistant |
| Art | Ernie Depew | Construction Coordinator |
| Crew | David Marder | Transportation Coordinator |
| Sound | Frank Fitzpatrick | Supervising Music Editor |
| Crew | Paula Tracy-Smuin | Choreographer |
| Lighting | Chris Strong | Gaffer |
| Editing | Jeffrey James Bell | Assistant Editor |
| Camera | Cary Griffith | Key Grip |
| Camera | Rodney Veto | Grip |
| Crew | John Feinblatt | Transportation Captain |
| Production | Frank Davis | Production Assistant |
| Editing | Dawn Solér | Project Manager |
| Camera | Phillip R. Sarabia | Grip |
| Lighting | Curt Marthey | Electrician |
| Crew | Michael Lantieri | Special Effects Coordinator |
| Lighting | R. Michael De Chellis | Rigging Gaffer |
| Art | Mike Litteken | Construction Foreman |
| Sound | Diane DeLouise Wessel | Assistant Music Supervisor |
| Camera | Khan Griffith | Grip |
| Production | Stephanie Kahn | Production Assistant |
| Crew | Michael M. Vendrell | Stunts |
| Production | Michael Neuman | Production Assistant |
| Editing | Bob Hagans | Color Timer |
| Editing | Reid Burns | Color Timer |
| Crew | Jerry Brutsche | Stunts |
| Crew | Debbie Evans | Stunts |
| Crew | Walter Robles | Stunts |
| Crew | Erik Cord | Stunts |
| Crew | David Perna | Stunts |
| Crew | Frank James Sparks | Stunts |
| Crew | Roy E. Harrison | Stunts |
| Production | Kris Krengel | Production Assistant |
| Editing | Donah Bassett | Negative Cutter |
| Crew | R.A. Rondell | Stunts |
| Crew | Jophery C. Brown | Stunts |
| Crew | Richard Drown | Stunts |
| Crew | Amber Alexander | Stunts |
| Production | Christine Cramer | Production Assistant |
| Crew | Buzz Bundy | Stunts |
| Crew | Vince Deadrick Jr. | Stunts |
| Crew | A. Michael Lerner | Stunts |
| Crew | Steven Lambert | Stunts |
