Actor
| 1. | St. Trinian's (2009) | |
| 2. | 300 (2007) | |
| 3. | Imagine Me & You (2006) as Luce | |
| 4. | The Cave (2005) as Katherine | |
| 5. | The Brothers Grimm (2005) as Angelika | |
| 6. | The Actors (2003) as Dolores | |
| 7. | The Gathering Storm (2002) as Ava Wigram | |
| 8. | Ripley's Game (2002) as Sarah Trevanny | |
| 9. | Possession (2002) as Blanche Glover | |
| 10. | Anazapta (2001) as Matilda | |
| 11. | The Parole Officer (2001) as Emma | |
| 12. | Gossip (2000) | |
| 13. | Ropewalk (2000) as Allison | |
| 14. | Aberdeen (2000) as Kaisa | |
| 15. | Onegin (1999) as Olga Larina | |
| 16. | The Man with Rain in His Shoes (1998) as Sylvia Weld | |
| 17. | Mrs Dalloway (1997) as Young Sally | |
| 18. | Face (1997) | |
| 19. | The Grotesque (1995) as Cleo Coal | |
| 20. | The Jungle Book (1994) as Katherine 'Kitty' Brydon | |
| 21. | Century (1993) as Miriam | |
| 22. | The Remains of the Day (1993) as Lizzie | |
| 23. | Waterland (1992) as Young Mary | |
| 24. | Vivaldi (working title) () |
Most Popular Films with Lena Headey
| 1. | St. Trinian's | 2009 |
|
| 2. | 300 | 2007 |
|
| 3. | The Parole Officer | 2001 |
|
| 4. | Imagine Me & You | 2006 |
|
| 5. | Onegin | 1999 |
|
| 6. | Ripley's Game | 2002 |
|
| 7. | Aberdeen | 2000 |
|
| 8. | The Man with Rain in His Shoes | 1998 |
|
| 9. | Waterland | 1992 |
|
| 10. | Possession | 2002 |
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