by Contents
Movie
| Year | Movie | Role |
| TBA | Mother/Android | Georgia |
| 2005 | The Amityville Horror | Chelsea Lutz |
| 2005 | Heart of the Beholder | Molly |
| 2005 | Today You Die | St. Thomas Hospital Girl |
| 2006 | Big Momma’s House 2 | Carrie Fuller |
| 2006 | Room 6 | Melissa Norman |
| 2006 | Wicked Little Things | Emma Tunny |
| 2007 | Super Sleuth Christmas Movie | Darby (voice) |
| 2007 | Hallowed Ground | Sabrina |
| 2007 | The Third Nail | Hailey |
| 2008 | The Eye | Alicia |
| 2008 | The Poker House | Cammie |
| 2008 | Bolt | Young Penny (voice) |
| 2009 | Not Forgotten | Toby Bishop |
| 2009 | 500 Days of Summer | Rachel Hansen |
| 2009 | Tigger & Pooh and a Musical Too | Darby (voice) |
| 2009 | Jack and the Beanstalk | Jillian |
| 2010 | Kick-Ass | Mindy McCready / Hit-Girl |
| 2010 | Diary of a Wimpy Kid | Angie Steadman |
| 2010 | Super Duper Super Sleuths | Darby (voice) |
| 2010 | Let Me In | Abby |
| 2011 | Our Deal | Veronica |
| 2011 | Texas Killing Fields | Little Ann Sliger |
| 2011 | Hick | Luli McMullen |
| 2011 | Hugo | Isabelle |
| 2011 | Scary Girl | Enid Krysinski |
| 2012 | Dark Shadows | Carolyn Stoddard |
| 2013 | Movie 43 | Amanda |
| 2013 | Kick-Ass 2 | Mindy McCready / Hit-Girl |
| 2013 | Carrie | Carrie White |
| 2013 | Girl Rising | Narrator |
| 2014 | Laggies | Annika |
| 2014 | Muppets Most Wanted | Newspaper Delivery Girl |
| 2014 | Clouds of Sils Maria | Jo-Anne Ellis |
| 2014 | If I Stay | Mia Hall |
| 2014 | The Equalizer | Alina / Teri |
| 2014 | The Tale of the Princess Kaguya | Kaguya Houraisan (voice) |
| 2015 | Dark Places | Young Diondra Wertzner |
| 2016 | The 5th Wave | Cassie Sullivan |
| 2016 | Neighbors 2: Sorority Rising | Shelby |
| 2016 | Brain on Fire | Susannah Cahalan |
| 2017 | I Love You, Daddy | China Topher |
| 2017 | November Criminals | Phoebe “Digger” |
| 2018 | The Miseducation of Cameron Post | Cameron Post |
| 2018 | Suspiria | Patricia Hingle |
| 2018 | Greta | Frances |
| 2019 | Red Shoes and the Seven Dwarfs | Snow White (voice) |
| 2019 | The Addams Family | Wednesday Addams (voice) |
| 2020 | Shadow in the Cloud | Flight Officer Maude Garrett |
| 2021 | Tom & Jerry | Kayla Montgomery |
TV Show
| Year | TV Show | Role |
| 2004 | The Guardian | Violet |
| 2005 | Family Plan | Young Charlie |
| 2005 | My Name Is Earl | Candy Stoker |
| 2006 | The Emperor’s New School | Furi (voice) |
| 2006–07 | Desperate Housewives | Sherri Maltby |
| 2007 | The Cure | Emily |
| 2007–08 | Dirty Sexy Money | Kiki George |
| 2007–10 | My Friends Tigger & Pooh | Darby (voice) |
| 2011–13 | 30 Rock | Kaylie Hooper |
| 2013 | American Dad! | Honey (voice) |
| 2015 | Mickey Mouse Clubhouse | Boodles (voice) |
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