Filmography
| Year | Title | Role |
| 2025 | Downton Abbey: The Grand Finale (2025) | Lord Robert Grantham |
| 2025 | Christmas Karma (2025) | Marley |
| 2024 | Paddington in Peru (2025) | Mr. Brown |
| 2023 | Mummies (2023) | Lord Carnaby |
| 2023 | Bank of Dave (2023) | Sir Charles |
| 2023 | Better Than Fine (2023) | The Universe |
| 2023 | Ozi: Voice of the Forest (2024) | Narrator |
| 2022 | Downton Abbey: A New Era (2022) | Robert Crawley |
| 2022 | The Amazing Maurice (2023) | The Mayor |
| 2021 | To Olivia (2022) | Roald Dahl |
| 2020 | Jingle Jangle: A Christmas Journey (2020) | Mr. Delacroix |
| 2019 | Downton Abbey (2019) | Robert Crawley, Earl of Grantham |
| 2019 | The Corrupted (2019) | Hammond |
| 2017 | A Return to Grace: Luther's Life and Legacy | Narrator |
| 2017 | Paddington 2 | Henry Brown |
| 2017 | Breathe (2017) | Teddy Hall |
| 2017 | Viceroy's House | Lord Louis Mountbatten |
| 2015 | Stick Man | Santa |
| 2015 | Silent Hours (2021) | Commander William Calthorpe |
| 2014 | Paddington (2015) | Henry Brown |
| 2014 | The Monuments Men | Donald Jeffries |
| 2013 | Born to Royalty | Narrator |
| 2010 | Burke and Hare | Lord Harrington |
| 2010 | Third Star | Beachcomber |
| 2009 | Glorious 39 | Gilbert |
| 2009 | Hippie Hippie Shake | John Mortimer |
| 2008 | Les Regrets de Miss Austen | Rev. Brook Bridges |
| 2006 | Scenes of a Sexual Nature | Gerry |
| 2005 | Asylum (2005) | Max Raphael |
| 2005 | Underclassman | Headmaster Felix Powers |
| 2004 | Stage Beauty | Samuel Pepys |
| 2003 | Conspiracy of Silence | Father Jack Dowling |
| 2001 | Blow Dry | Louis |
| 1999 | Mansfield Park | Mr. Rushworth |
| 1999 | Notting Hill | Bernie |
