Filmography54 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2025 | This Ordinary ThingMovie | Self (voice) | 49 |
| 2024 | The RadleysMovie | Helen Radley | 48 |
| 2020 | Truth SeekersSeries | JoJo 74 | 44 |
| 2020 | Dirt MusicMovie | Georgie | 44 |
| 2019 | Giri/HajiSeries | Sarah | 43 |
| 2019 | The VictimSeries | Anna Dean | 43 |
| 2018 | Ralph Breaks the InternetMovie | Merida (voice) | 42 |
| 2018 | Holmes & WatsonMovie | Mrs. Martha Hudson | 42 |
| 2018 | Somebody Feed PhilSeries | Self | 42 |
| 2018 | PuzzleMovie | Agnes | 42 |
| 2017 | Urban MythsSeries | Princess Margaret | 41 |
| 2017 | T2 TrainspottingMovie | Diane | 41 |
| 2017 | Goodbye Christopher RobinMovie | Olive Rand / Nou | 41 |
| 2016 | Swallows and AmazonsMovie | Mrs. Walker | 40 |
| 2016 | The Journey Is the DestinationMovie | Duff | 40 |
| 2016 | Special CorrespondentsMovie | Claire Maddox | 40 |
| 2014 | The Final Shot: A Farewell to Boardwalk EmpireMovie | Self | 38 |
| 2014 | Strap HangingMovie | — | 38 |
| 2012 | BraveMovie | Merida (voice) | 36 |
| 2012 | Anna KareninaMovie | Dolly | 36 |
| 2012 | Line of DutySeries | DCI Jo Davidson | 36 |
| 2011 | Harry Potter and the Deathly Hallows: Part 2Movie | Helena Ravenclaw | 35 |
| 2011 | Black MirrorSeries | Karin Parke | 35 |
| 2010 | Boardwalk EmpireSeries | Margaret Thompson | 34 |
| 2009 | In the Electric MistMovie | Kelly Drummond | 33 |
| 2009 | SkelligMovie | Louise | 33 |
| 2008 | Behind the Scenes of 'No Country for Old Men': An Incredibly Unauthorized DocumentaryMovie | Self | 32 |
| 2008 | The Making of 'No Country for Old Men'Movie | Self - Carla Jean Moss | 32 |
| 2007 | No Country for Old MenMovie | Carla Jean Moss | 31 |
| 2006 | All the Invisible ChildrenMovie | Jonathan's wife (segment "Jonathan") | 30 |
| 2005 | The Late Late Show with Craig FergusonSeries | Self | 29 |
| 2005 | Nanny McPheeMovie | Evangeline | 29 |
| 2005 | LassieMovie | Jeanie | 29 |
| 2005 | A Cock and Bull StoryMovie | Jenny | 29 |
| 2004 | Finding NeverlandMovie | Peter Pan | 28 |
| 2003 | State of PlaySeries | Della Smith | 27 |
| 2003 | IntermissionMovie | Deirdre | 27 |
| 2003 | Brush with FateMovie | Aletta Pieters | 27 |
| 2002 | The Making of Gosford ParkMovie | Self | 26 |
| 2001 | AliasSeries | Kiera MacLaine / Meghan Keene | 25 |
| 2001 | Gosford ParkMovie | Mary Maceachran | 25 |
| 2000 | Two Family HouseMovie | Mary O'Neary | 24 |
| 2000 | Some VoicesMovie | Laura | 24 |
| 2000 | House!Movie | Linda | 24 |
| 1999 | My Life So FarMovie | Elspeth Pettigrew | 23 |
| 1999 | EntropyMovie | Pia | 23 |
| 1999 | SplendorMovie | Mike | 23 |
| 1999 | The Loss of Sexual InnocenceMovie | Susan | 23 |
| 1998 | Cousin BetteMovie | Hortense Hulot | 22 |
| 1998 | ElizabethMovie | Isabel Knollys | 22 |
| 1996 | TrainspottingMovie | Diane | 20 |
| 1996 | Flowers of the ForestMovie | Amy Ogilvie | 20 |
| 1951 | Hallmark Hall of FameSeries | Aletta Pieters | — |
| 0 | DennisMovie | — | — |