Paris in the 1920s. Marguerite Dumont is a wealthy woman with a passion for music and the opera. For years, she has performed regularly for a circle of guests. But Marguerite sings tragically out of tune and no one has ever told her. Her husband and her close friends have always encouraged her in her illusions. Things become very complicated the day she gets it into her head to perform in front of a genuine public, at the Opera.
Unfortunately the movie Marguerite is not yet available on HBO Max.
| Directing | Xavier Giannoli | Director |
| Camera | Glynn Speeckaert | Director of Photography |
| Art | Martin Kurel | Production Design |
| Production | Marc Missonnier | Producer |
| Production | Artemio Benki | Executive Producer |
| Production | Olivier Delbosc | Producer |
| Costume & Make-Up | Pierre-Jean Larroque | Costume Design |
| Production | Michaël Laguens | Casting |
| Sound | Ronan Maillard | Original Music Composer |
| Production | Christine de Jekel | Executive Producer |
| Editing | Cyril Nakache | Editor |
| Production | Branko Jehlar | Production Manager |
| Directing | Tomáš Pavlacký | First Assistant Director |
| Directing | Matěj Leš | Third Assistant Director |
| Writing | Xavier Giannoli | Writer |
| Directing | Martina Götthansova | Second Assistant Director |
| Production | Arwa Salmanova | Casting |
| Directing | Mirek Lux | First Assistant Director |
| Production | Philippe Hagège | Production Manager |
| Crew | Susana Antunes | Post Production Supervisor |
| Writing | Marcia Romano | Co-Writer |
| Art | Beatrice Brentnerova | Art Direction |
| Art | Nora Sopková | Set Decoration |
| Art | Petr Grig | Set Designer |
| Sound | François Musy | Sound Mixer |
| Editing | Sarah Perrain | Assistant Editor |
| Production | Robert Mehrle | Location Manager |
| Sound | Vivien Kiper | Music Supervisor |
| Art | Véronique Melery | Set Decoration |
| Art | Magdalena Zemanova | Art Department Coordinator |
| Camera | Larry D. Horricks | Still Photographer |
| Art | Petra Vencelidesová | Graphic Designer |
| Costume & Make-Up | Jan Sotola | Costume Coordinator |
| Crew | Pavel Smid | Scenic Artist |
| Art | Petr Zůza | Leadman |
| Sound | Gabriel Hafner | Sound Re-Recording Mixer |
| Sound | Renaud Musy | Boom Operator |
| Editing | Magalie Léonard | Colorist |
| Visual Effects | Guillaume Pondard | Visual Effects Supervisor |
| Art | Pavel Tatar | Art Direction |
| Costume & Make-Up | Pierre-Adrien Gassot | Assistant Costume Designer |
| Directing | Vojta Hlavicka | Third Assistant Director |
| Camera | Mark Rimmer | Camera Operator |
| Directing | Marketa Magerova | Third Assistant Director |
| Sound | Cécile Coutelier | Music Editor |
| Crew | Stanislav Suva | Scenic Artist |
| Camera | Michel Galtier | First Assistant Camera |
| Art | Luciano Vittori Jr. | Title Designer |
| Lighting | Zdeněk Požár | Best Boy Electric |
| Production | Sian Bolland | Production Manager |
| Sound | Philippe van Leer | Foley Artist |
| Directing | Aurélie Nolf | Script Supervisor |
| Art | Petra Oplatková | Graphic Designer |
| Art | Karel Stýblo | Set Dresser |
| Production | Geneviève Lemal | Co-Producer |
| Costume & Make-Up | Andrea Koutkova | Hairstylist |
| Art | Ondřej Lipenský | Graphic Designer |
| Sound | Marie Sabbah | Music Supervisor |
