In 1774 wordt Georgiana Spencer (Knightley) – zeventien jaar jong; mooi; goed in vreemde talen, paardrijden en dansen – door haar moeder uitgehuwelijkt aan één van de machtigste mannen van Engeland (Fiennes). Hij wil dat ze voor hem een opvolger baart en is verder meer geïnteresseerd in zijn honden. Georgiana stort zich op het sociale leven van de Engelse upper-class en staat dagelijks in de roddelrubrieken van de krant.
Nee, helaas is The Duchess nog niet beschikbaar op Netflix in Nederland.
| Sound | Jeff Richardson | Dialogue Editor |
| Sound | Howard Halsall | Dialogue Editor |
| Camera | Pados Gyula | Director of Photography |
| Editing | Masahiro Hirakubo | Editor |
| Sound | Rachel Portman | Original Music Composer |
| Production | Gabrielle Tana | Producer |
| Production | David M. Thompson | Executive Producer |
| Writing | Jeffrey Hatcher | Screenplay |
| Directing | Saul Dibb | Director |
| Production | Michael Kuhn | Producer |
| Production | Carolyn Marks Blackwood | Executive Producer |
| Writing | Anders Thomas Jensen | Screenplay |
| Costume & Make-Up | Michael O'Connor | Costume Design |
| Art | James Collins | Assistant Art Director |
| Crew | Ed Cross | Visual Effects Editor |
| Camera | Peter Mountain | Still Photographer |
| Writing | Saul Dibb | Screenplay |
| Lighting | Vince Madden | Rigging Gaffer |
| Editing | Marcus Alexander | Digital Intermediate |
| Production | Ben Gladstone | Location Manager |
| Costume & Make-Up | Corinne Bossu | Makeup Artist |
| Sound | Andrea King | Foley |
| Crew | Simon Allmark | Visual Effects Editor |
| Visual Effects | Charlie Noble | Visual Effects Supervisor |
| Costume & Make-Up | Fran Needham | Hairstylist |
| Costume & Make-Up | Rachael Speke | Makeup Artist |
| Costume & Make-Up | Tapio Salmi | Makeup Artist |
| Visual Effects | Becky Roberts | Visual Effects Producer |
| Visual Effects | Adam Gascoyne | Visual Effects Supervisor |
| Camera | Rodrigo Gutierrez | Additional Camera |
| Art | Rebecca Alleway | Set Decoration |
| Crew | Muffin Green | Property Master |
| Visual Effects | Fay McConkey | Visual Effects Producer |
| Writing | Amanda Foreman | Novel |
| Art | Michael Carlin | Production Design |
| Costume & Make-Up | Stephanie Hovette | Wigmaker |
| Sound | Catherine Hodgson | Supervising Sound Editor |
| Sound | Paul Hamblin | Sound Re-Recording Mixer |
| Editing | Élodie Ichter | Digital Intermediate |
| Art | Karen Wakefield | Art Direction |
| Lighting | John Colley | Gaffer |
| Camera | Gerry Vasbenter | Camera Operator |
| Costume & Make-Up | Louise Fisher | Makeup Artist |
| Editing | Jonathan Dixon | Digital Intermediate |
| Crew | Francesca Jaynes | Choreographer |
| Crew | Emma Davie | Unit Publicist |
| Sound | Yann McCullough | Music Editor |
| Editing | Neil Williams | First Assistant Editor |
| Sound | Roberto Cappannelli | Sound Re-Recording Mixer |
| Editing | Josh Sutcliffe | Digital Intermediate |
| Crew | Jill McCullough | Dialect Coach |
| Directing | Sam Donovan | Script Supervisor |
| Sound | Andie Derrick | Foley |
| Production | Jill Tandy | Associate Producer |
| Production | Alexandra Arlango | Co-Producer |
| Production | François Ivernel | Executive Producer |
| Production | Malcolm Ritchie | Associate Producer |
| Production | Andrew Warren | Line Producer |
| Production | Mark Woolley | Associate Producer |
| Production | Amanda Foreman | Executive Producer |
| Production | Christine Langan | Executive Producer |
| Production | Colleen Woodcock | Co-Producer |
| Production | Andrew Semans | Associate Producer |
| Production | Cameron McCracken | Executive Producer |
| Costume & Make-Up | Daniel Phillips | Makeup Designer |
| Costume & Make-Up | Jan Archibald | Hair Designer |
