| 2027 | The Lord of the Rings: The Hunt for Gollum | Gandalf | Film |
| 2026 | Avengers: Doomsday | Magneto | Film |
| 2026 | Ebenezer: A Christmas Carol | Jacob Marley | Film |
| 2025 | The Christophers | Julian Sklar | Film |
| 2024 | Dragfox | Ginger Snap the Fox (Speaking) (voice) | Film |
| 2019 | The Good Liar | Roy Courtnay | Film |
| 2018 | Animal Crackers | Horatio P. Huntington (voice) | Film |
| 2018 | All Is True | Earl of Southampton | Film |
| 2017 | Beauty and the Beast | Cogsworth | Film |
| 2015 | Mr. Holmes | Sherlock Holmes | Film |
| 2015 | Mutant vs. Machine - The Making of 'X-Men: Days of Future Past' | Self | Film |
| 2015 | X-Men: Unguarded | Self | Film |
| 2015 | X-Men: Days of Future Past - The Rogue Cut | Erik Lehnsherr / Magneto | Film |
| 2014 | Double Take: Xavier & Magneto | Self | Film |
| 2014 | X-Men: Reunited | Self | Film |
| 2014 | X-Men: Days of Future Past | Magneto | Film |
| 2014 | The Hobbit: The Battle of the Five Armies | Gandalf the Grey | Film |
| 2013 | The Hobbit: The Desolation of Smaug | Gandalf the Grey | Film |
| 2013 | Vicious | Freddie Thornhill | TV |
| 2012 | The Hobbit: An Unexpected Journey | Gandalf the Grey | Film |
| 2012 | Doctor Who: The Snowmen | The Great Intelligence (voice) | Film |
| 2012 | London 2012: Paralympics Opening Ceremony | Self | Film |
| 2011 | The Betty Driver Story | Self | Film |
| 2008 | King Lear | King Lear | Film |
| 2007 | The Golden Compass | Iorek Byrnison (voice) | Film |
| 2007 | Stardust | Narrator (voice) | Film |
| 2006 | Saint of 9/11 | Narrator | Film |
| 2006 | Doogal | Zebedee (voice) | Film |
| 2006 | Flushed Away | The Toad (voice) | Film |
| 2006 | The Da Vinci Code | Sir Leigh Teabing | Film |
| 2006 | X-Men: The Last Stand | Erik Lehnsherr / Magneto | Film |
| 2005 | Neverwas | Gabriel Finch | Film |
| 2005 | Ringers: Lord of the Fans | Self | Film |
| 2005 | Asylum | Dr. Peter Cleave | Film |
| 2005 | The Magic Roundabout | Zebedee (voice) | Film |
| 2005 | Eighteen | Jason Anders (voice) | Film |
| 2004 | Frodo Is Great... Who Is That?!! | Self | Film |
| 2003 | Emile | Emile | Film |
| 2003 | The Lord of the Rings: The Return of the King | Gandalf | Film |
| 2003 | X2 | Eric Lehnsherr / Magneto | Film |
| 2003 | Beyond the Movie: The Return of the King | Self | Film |
| 2002 | The Lord of the Rings - The Appendices Part 2: From Vision to Reality | Self | Film |
| 2002 | The Lord of the Rings - The Appendices Part 1: From Book to Vision | Self | Film |
| 2002 | The Fellowship of the Ring: The Road Goes Ever On.. | Self | Film |
| 2002 | The Fellowship of the Ring: From Book to Script | Self | Film |
| 2002 | The Fellowship of the Ring: The Fellowship of the Cast | Self | Film |
| 2002 | The Fellowship of the Ring: Cameras in Middle-earth | Self | Film |
| 2002 | The Fellowship of the Ring: Scale | Self | Film |
| 2002 | The Lord of the Rings: The Two Towers | Gandalf | Film |
| 2002 | The Fellowship of the Ring: Designing and Building Middle-earth + Weta Workshop + Costume Design | Self | Film |
| 2001 | Passage to Middle-Earth: The Making of 'The Lord of the Rings' | Self | Film |
| 2001 | The Lord of the Rings: The Fellowship of the Ring | Gandalf | Film |
| 2001 | Beyond the Movie: The Fellowship of the Ring | Self | Film |
| 2000 | Cirque du Soleil: Journey of Man | Narrator (voice) | Film |
| 2000 | X-Men | Magneto | Film |
| 2000 | Now You See Him: 'The Invisible Man' Revealed! | Self | Film |
| 1999 | After Stonewall | Self | Film |
| 1999 | David Copperfield | Creakle | TV |
| 1998 | Swept from the Sea | Dr. James Kennedy | Film |
| 1998 | Apt Pupil | Kurt Dussander | Film |
| 1998 | Gods and Monsters | James Whale | Film |
| 1997 | Bent | Uncle Freddie | Film |
| 1996 | Rasputin | Tsar Nicholas II | Film |
| 1995 | Cold Comfort Farm | Amos Starkadder | Film |
| 1995 | Richard III | Richard III | Film |
| 1995 | Jack & Sarah | William | Film |
| 1995 | Restoration | Will Gates | Film |
| 1994 | The Shadow | Dr. Reinhardt Lane | Film |
| 1994 | I'll Do Anything | John Earl McAlpine | Film |
| 1994 | To Die For | Quilt Documentary Narrator (voice) | Film |
| 1993 | The Ballad of Little Jo | Percy Corcoran | Film |
| 1993 | And the Band Played On | Bill Kraus | Film |
| 1993 | Last Action Hero | Death | Film |
| 1993 | Six Degrees of Separation | Geoffrey | Film |
| 1989 | Scandal | John Profumo | Film |
| 1989 | Countdown to War | Adolf Hitler | Film |
| 1985 | Zina | Kronfeld | Film |
| 1985 | Plenty | Sir Andrew Charleson | Film |
| 1983 | Walter and June | Walter | Film |
| 1983 | The Keep | Dr. Theodore Cuza | Film |