Below is a list of feature films that Michelle has starred in. They are listed in reverse-chronological order, with the most recent ones last. Click on the titles to read more about each project individually.
| 2011 | Hanna | as False Marissa |
| 2012 | Anna Karenina | Princess Myagkaya |
| 2014 | Non-Stop | as Nancy |
| 2015 | Self/less | as Claire |
| 2017 | The Sense of an Ending | as Susie Webster |
| 2019 | Downton Abbey | as Lady Mary Crawley |
| 2020 | The Gentlemen | as TBA |