| Relay | 2024 | Actress | Sarah |
| Greedy People | 2024 | Actress | Paige |
| The Iron Claw | 2023 | Actress | Pam |
| Finally Dawn | 2023 | Actress | Josephine Esperanto |
| What's Love Got to Do with It? | 2022 | Actress | Zoe Stevenson |
| BareFace: A Night of Mistakes | 2022 | Actress | Critic |
| Pam & Tommy | 2022 | Actress | Pamela Anderson Lee |
| Beauty and the Beast: A Comic Relief Pantomime for Christmas | 2021 | Actress | Rose |
| The Pursuit of Love | 2021 | Actress | Linda Radlett |
| The Dig | 2021 | Actress | Peggy Piggott |
| Rebecca | 2020 | Actress | Mrs. de Winter |
| Rare Beasts | 2019 | Actress | Cressida |
| Yesterday | 2019 | Actress | Ellie Appleton |
| One Red Nose and a Wedding | 2019 | Actress | Miranda |
| All About Eve | 2019 | Actress | Eve Harrington |
| Mamma Mia! Here We Go Again | 2018 | Actress | Young Donna |
| Little Woods | 2018 | Actress | Deb |
| The Guernsey Literary and Potato Peel Pie Society | 2018 | Actress | Juliet Ashton |
| Sorry to Bother You | 2018 | Actress | Detroit's White British Voice (voice) |
| Darkest Hour | 2017 | Actress | Elizabeth Layton |
| Baby Driver | 2017 | Actress | Debora |
| The Tale of Thomas Burberry | 2016 | Actress | Betty |
| The Exception | 2016 | Actress | Mieke de Jong |
| Branagh Theatre Live: Romeo and Juliet | 2016 | Actress | Juliet |
| War & Peace | 2016 | Actress | Natasha Rostova |
| Pride and Prejudice and Zombies | 2016 | Actress | Elizabeth Bennet |
| Downton Abbey | 2012–2015 | Actress | Lady Rose MacClare |
| Burnt | 2015 | Actress | Sara |
| Cinderella | 2015 | Actress | Cinderella |
| Silent Treatment | 2013 | Actress | The Girl |
| Fast Girls | 2012 | Actress | Lisa Temple |
| Broken | 2012 | Actress | Older Skunk |
| Wrath of the Titans | 2012 | Actress | Korrina |
| Chemistry | 2012 | Actress | Ines |
| Secret Diary of a Call Girl | 2011 | Actress | Poppy |
| Chloe and Will's Hot Date Night | 2011 | Actress | Chloe |
| Just William | 2010 | Actress | Ethel Brown |
| The Pursuit of Love | 2021 | Producer | executive producer |
| Pam & Tommy | 2022 | Soundtrack | performer: "Getting to Know You" (uncredited) |
| Yesterday | 2019 | Soundtrack | performer: "I Want To Hold Your Hand" |
| Comic Relief: Mamma Mia! Here We Go Yet Again | 2019 | Soundtrack | performer: "When I Kissed the Teacher" |
| Diminishing Returns | 2018 | Soundtrack | performer: "When I Kissed the Teacher", "Waterloo" |
| The Tonight Show Starring Jimmy Fallon | 2018 | Soundtrack | performer: "Part of Your World", "Kiss from a Rose" (uncredited) |
| Mamma Mia! Here We Go Again | 2018 | Soundtrack | performer: "When I Kissed the Teacher", "Waterloo", "Why Did It Have to Be Me?", "I Have a Dream", "Andante, Andante", "The Name of the Game", "Knowing Me, Knowing You", "Mamma Mia", "My Love, My Life", "Super Trouper" |
| Cinderella | 2015 | Soundtrack | performer: "Lavender's Blue", "Oh, Sing Sweet Nightingale", "A Dream Is A Wish Your Heart Makes" |
| The Kelly Clarkson Show | 2024 | Self | Self - Guest |
| Today | 2017–2023 | Self | Self - Guest |
| LADbible Entertainment TV Series | 2023 | Self | Self |
| 2023 EE BAFTA Film Awards | 2023 | Self | Self |
| The 28th Annual Critics' Choice Awards | 2023 | Self | Self - Nominee |
| 80th Golden Globe Awards | 2023 | Self | Self - Nominee |
| Entertainment Tonight | 2015–2022 | Self | Self |
| The 74th Primetime Emmy Awards | 2022 | Self | Self - Nominee |
| Bild Live | 2022 | Self | Self - Pam & Tommy |
| Variety Studio: Actors on Actors | 2022 | Self | Self - Guest |
| In Creative Company | 2022 | Self | Self |
| The Oscars | 2022 | Self | Self - Presenter |
| Extra | 2015–2022 | Self | Self |
| The 37th Film Independent Spirit Awards | 2022 | Self | Self - Presenter |
| Hulu: YouTube Channel TV Series | 2022 | Self | Self |
| Fan Questions | 2022 | Self | Self - Guest |
| The Late Late Show with James Corden | 2016–2022 | Self | Self - Guest |
| Jimmy Kimmel Live! | 2022 | Self | Self - Guest |
| One Night Only. Dubai Video | 2021 | Self | Self |
| IMDb on the Scene | 2020 | Self | Self - Guest |
| Celebrity Page | 2017–2020 | Self | Self |
| The Tonight Show Starring Jimmy Fallon | 2018–2020 | Self | Self - Guest |
| Dish Nation | 2018–2020 | Self | Self |
| Harper's Bazaar UK TV Series | 2019–2020 | Self | Self |
| Made in Hollywood: Teen Edition | 2020 | Self | Self |
| EE British Academy Film Awards | 2020 | Self | Self |
| The Graham Norton Show | 2016–2019 | Self | Self - Guest |
| Made in Hollywood | 2015–2018 | Self | Self |
| IMDb Interviews | 2018 | Self | Self - Guest |
| Meet the Film Makers: Mamma Mia! Here We Go Again | 2018 | Self | Self |
| Fantastic | 2018 | Self | Self |
| Good Morning Britain | 2018 | Self | Self |
| Access Hollywood | 2018 | Self | Self |
| Mamma Mia! Here We Go Again: HBO First Look | 2018 | Self | Self |
| The One Show | 2016–2018 | Self | Self - Guest |
| Darkest Hour: Gary Oldman - Becoming Churchill | 2018 | Self | Self |
| Darkest Hour: Into Darkest Hour | 2018 | Self | Self |
| The EE British Academy Film Awards | 2018 | Self | Self - Presenter |
| Darkest Hour: Meet the Filmmakers | 2018 | Self | Self |
| 75th Golden Globe Awards | 2018 | Self | Self - Audience Member (uncredited) |
| Late Night with Seth Meyers | 2017 | Self | Self - Guest |
| Live with Kelly and Mark | 2015–2017 | Self | Self - Guest |
| Reel Junkie | 2017 | Self | Self |
| British GQ TV Mini Series | 2017 | Self | Self |
| Wimbledon | 2016 | Self | Self - Spectator (uncredited) |
| The 24th Annual Movieguide Awards | 2016 | Self | Self |
| Film '72 | 2016 | Self | Self - Interviewee |
| Up Close with Carrie Keagan | 2016 | Self | Self - Guest |
| Justine Magazine: "Pride and Prejudice and Zombies" Cast Play Guys vs. Girls Game! Video | 2016 | Self | Self |
| The Timey Wimey Show TV Series | 2016 | Self | Self - Guest |
| Good Morning America | 2015–2016 | Self | Self - Guest |
| Hollywood Today Live | 2016 | Self | Self |
| 73rd Golden Globe Awards | 2016 | Self | Self - Presenter |
| The Talk | 2016 | Self | Self - Guest |
| Bafta's 60 Seconds With... | 2015 | Self | Self |
| Días de cine | 2015 | Self | Self - Interviewee |
| Rachael Ray | 2015 | Self | Self - Guest |
| Late Show with David Letterman | 2015 | Self | Self - Guest |
| On the Scene with Lindalee | 2015 | Self | Self |
| Evening Urgant | 2015 | Self | Self - Guest |
| Berlinale TV Series | 2015 | Self | Self |
| Text Santa 2014 | 2014 | Self | Lady Rose MacClare |
| The Big Picture | 2012 | Self | Self |
| Buongiorno | 2025 | Archive Footage | Self (archive footage) |
| Entertainment Tonight | 2015–2022 | Archive Footage | Self (archive footage) |
| Inside Edition | 2021 | Archive Footage | Self (archive footage) |
| Celebrity Page | 2020 | Archive Footage | Self (archive footage) |
| 420 AWARDS - 2nd Annual Event | 2020 | Archive Footage | Self - Nominee (archive footage) |
| 2019: A Year in the Life of a Year | 2020 | Archive Footage | Self (archive footage) |
| Andrew Davies: Rewriting the Classics | 2018 | Archive Footage | Natasha Rostova (archive footage, uncredited) |
| Mamma Mia! Here We Go Again: Waterloo | 2018 | Archive Footage | Young Donna (archive footage) |
| Extra | 2016 | Archive Footage | Self (archive footage) |
| Saturday Night Live | 2015 | Archive Footage | Cinderella (archive footage, uncredited) |