The young D'Artagnan arrives in Paris with dreams of becoming a King's musketeer. He meets and quarrels with three men, Athos, Porthos, and Aramis, each of whom challenges him to a duel. D'Artagnan finds out they are musketeers and is invited to join them in their efforts to oppose Cardinal Richelieu, who wishes to increase his already considerable power over the King. D'Artagnan must also juggle affairs with the charming Constance Bonancieux and the passionate Lady De Winter, a secret agent for the Cardinal.
Unfortunately the movie The Three Musketeers is not yet available on HBO Max.
| Writing | Alexandre Dumas | Novel |
| Writing | George MacDonald Fraser | Screenplay |
| Directing | Richard Lester | Director |
| Production | Alexander Salkind | Producer |
| Sound | Michel Legrand | Original Music Composer |
| Editing | John Victor-Smith | Editor |
| Camera | David Watkin | Director of Photography |
| Art | Brian Eatwell | Production Design |
| Costume & Make-Up | Yvonne Blake | Costume Design |
| Production | Ilya Salkind | Executive Producer |
| Production | Michael Salkind | Executive Producer |
| Production | Wolfdieter von Stein | Associate Producer |
| Production | Miriam Brickman | Casting |
| Art | Leslie Dilley | Art Direction |
| Art | Fernando González | Art Direction |
| Costume & Make-Up | Cristóbal Criado | Makeup Artist |
| Costume & Make-Up | Susan Germaine | Hairdresser |
| Costume & Make-Up | Kaye Pownall | Hairdresser |
| Costume & Make-Up | Charlene Roberson | Makeup Artist |
| Costume & Make-Up | Carmen Sánchez | Hairdresser |
| Costume & Make-Up | José Antonio Sánchez | Makeup Artist |
| Costume & Make-Up | Ziggy Geike | Makeup Artist |
| Production | Francisco Bellot | General Manager |
| Production | Enrique Esteban | Production Supervisor |
| Production | Pierre Spengler | Executive In Charge Of Production |
| Directing | Patricio Beltran Aparicio | Assistant Director |
| Directing | Clive Reed | First Assistant Director |
| Directing | Dusty Symonds | Assistant Director |
| Directing | Alain Walker | Assistant Director |
| Art | Eddie Fowlie | Property Master |
| Art | John Lanzer | Property Buyer |
| Art | Rafael Ablanque | Assistant Art Director |
| Art | José María Alarcón | Assistant Art Director |
| Art | Emilio Ardura | Set Dresser |
| Crew | Julián Martín | Scenic Artist |
| Art | Francisco Prósper | Construction Coordinator |
| Sound | Don Challis | Sound Editor |
| Sound | Roy Charman | Sound Mixer |
| Sound | Gerry Humphreys | ADR & Dubbing |
| Sound | Simon Kaye | Sound Mixer |
| Sound | George Rice | Boom Operator |
| Sound | Don Sharpe | Sound Editor |
| Sound | Robin O'Donoghue | ADR & Dubbing |
| Crew | Eddie Fowlie | Special Effects |
| Crew | Pablo Pérez | Special Effects Coordinator |
| Crew | Joaquín Parra | Stunt Coordinator |
| Crew | Brandy | Stunt Double |
| Camera | Ronald Anscombe | Assistant Camera |
| Camera | Antonio Colmenar | Grip |
| Lighting | Enrique de la Jara | Best Boy Electric |
| Camera | Alejandro Diges | Still Photographer |
| Camera | Frank Elliott | Assistant Camera |
| Camera | Peter Ewens | Camera Operator |
| Lighting | Francisco Gallardo | Gaffer |
| Camera | Federico Gómez Grau | Still Photographer |
| Camera | Luis Peña | Assistant Camera |
| Camera | Vincent Rossell | Still Photographer |
| Camera | Paul Wilson | Camera Operator |
| Costume & Make-Up | Manuela Iglesias | Wardrobe Assistant |
| Costume & Make-Up | Ron Talsky | Costume Designer |
| Costume & Make-Up | Jean Zay | Costume Supervisor |
| Costume & Make-Up | Haleen K. Holt | Costume Illustrator |
| Costume & Make-Up | May Routh | Costume Illustrator |
| Editing | Peter Boyle | Assistant Editor |
| Editing | Peter Holt | Assistant Editor |
| Editing | Richard Hymns | Assistant Editor |
| Directing | Ann Skinner | Continuity |
| Sound | Tom Buchanan | Boom Operator |
