| 2000 | Pandaemonium | Emma Southey | |
| 2006 | Notes on a Scandal | Polly Hart | |
| 2007 | Atonement | Lola Quincey | |
| St Trinian's | Celia | |
| 2008 | The Other Boleyn Girl | Jane Boleyn, Viscountess Rochford | |
| Wild Child | Drippy | |
| 2009 | Year One | Eema | |
| Cracks | Di Radfield | |
| Mr. Nobody | Anna age 15 | |
| Glorious 39 | Celia | |
| St Trinian's 2: The Legend of Fritton's Gold | Celia | |
| 2010 | Greenberg | Muriel | |
| Swerve | Missy | Short film |
| Bastard | Girl | Short film |
| Kaboom | London | |
| Dirty Girl | Danielle Edmondston | |
| 2011 | Henry | Babysitter | Short film |
| Little Birds | Lily Hobart | |
| The Three Musketeers | Queen Anne | |
| 2012 | The Dark Knight Rises | Jen | |
| The Brass Teapot | Alice | |
| Killer Joe | Dottie Smith | |
| Small Apartments | Simone | |
| Jack & Diane | Diane / Karen | |
| 2013 | Afternoon Delight | McKenna | |
| Magic Magic | Alicia | |
| Lovelace | Patsy | |
| Horns | Merrin Williams | |
| 2014 | Maleficent | Thistlewit | |
| Sin City: A Dame to Kill For | Sally | |
| 2015 | Safelight | Vicki | |
| Meadowland | Mackenzie | |
| Far from the Madding Crowd | Fanny Robin | |
| Len and Company | Zoe | |
| Black Mass | Deborah Hussey | |
| 2016 | Away | Ria | |
| 2017 | The Most Hated Woman in America | Robin Murray O'Hair | |
| One Percent More Humid | Iris | |
| Wonder Wheel | Carolina | |
| 2018 | Unsane | Violet | |
| The Pretenders | Victoria | |
| Tocsin | Coral | Short film[29] |
| 2019 | Lost Transmissions | Hannah | |
| Maleficent: Mistress of Evil | Thistlewit | |
| 2021 | Palmer | Shelly |
