Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | The Tourist | 2010 | |
| Writer | Downton Abbey - Der Film | 2019 | |
| Producer | Downton Abbey - Der Film | 2019 | |
| Actor | Der Morgen stirbt nie | 1997 | Minister of Defence |
| Writer | Downton Abbey II: Eine neue Ära | 2022 | |
| Writer | Romeo und Julia | 2013 | |
| Writer | Titanic | ||
| Writer | Victoria, die junge Königin | 2009 | |
| Writer | Das krumme Haus | 2017 | |
| Actor | Ein Kartenhaus | Sir Henry Ponsonby | |
| Writer | Gosford Park | 2001 | |
| Producer | Gosford Park | 2001 | |
| Writer | Vanity Fair – Jahrmarkt der Eitelkeiten | 2004 | |
| Actor | Goldeneye - Der Mann, der James Bond war | 1989 | Noel Coward |
| Actor | Verhängnis | 1992 | Donald Lyndsay, MP |
| Director | Die Kamine von Green Knowe | 2009 | |
| Writer | Die Kamine von Green Knowe | 2009 | |
| Producer | Die Kamine von Green Knowe | 2009 | |
| Actor | Monarch of the Glen | Lord Kilwillie | |
| Actor | Shadowlands - Ein Geschenk des Augenblicks | 1993 | Desmond Arding |
| Actor | Aristocrats | Duke of Richmond | |
| Actor | Our Friends in the North | ||
| Writer | The Chaperone | 2019 | |
| Actor | Der Weihnachtsstern | 2017 | Himself |
| Actor | Das scharlachrote Siegel | 1982 | The Prince Regent |
| Director | Geliebte Lügen | 2005 | |
| Actor | Place Vendôme - Heiße Diamanten | 1998 | Wajman |
| Actor | Die Scharfschützen - Das Banner des Blutes | 1993 | Major Dunnett |
| Actor | Baby: Das Geheimnis einer verlorenen Legende | 1985 | Nigel Jenkins |
| Actor | Der Preis der Ehre | 1997 | Timmons |
| Actor | Die Scharfschützen - Das verschollene Bataillon | 1996 | The Prince Regent |
| Actor | Der Führerbunker | 1981 | Co. von Below |
| Actor | Florence Nightingale | 1985 | Charles Bracebrige |