by Contents
Movies
| Year | Movie name | Role |
| 2001 | Blow | Kristina Sunshine Jung |
| 2001 | BigLove | Delilah |
| 2001 | America’s Sweethearts | Girl in Purple T-shirt |
| 2002 | Grand Champion | Sister |
| 2006 | Spymate | Amelia Muggins |
| 2006 | Aquamarine | Claire Brown |
| 2007 | Nancy Drew | Nancy Drew |
| 2008 | Wild Child | Poppy Moore |
| 2008 | Lymelife | Adrianna Bragg |
| 2008 | The Flight Before Christmas | Wilma |
| 2009 | Hotel for Dogs | Andi |
| 2009 | The Winning Season | Abbie Miller |
| 2010 | Twelve | Molly Norton |
| 2010 | Valentine’s Day | Grace Smart |
| 2010 | Memoirs of a Teenage Amnesiac | Alice Leeds |
| 2010 | 4.3.2.1. | Joanne |
| 2010 | It’s Kind of a Funny Story | Noelle |
| 2010 | Virginia | Jessie Tipton |
| 2011 | The Art of Getting By | Sally Howe |
| 2011 | Scream 4 | Jill Roberts |
| 2012 | Celeste and Jesse Forever | Riley Banks |
| 2013 | Adult World | Amy Anderson |
| 2013 | We’re the Millers | Casey Mathis / Casey Miller |
| 2013 | Palo Alto | April |
| 2013 | Empire State | Nancy Michaelides |
| 2015 | I Am Michael | Rebekah Fuller |
| 2015 | Ashby | Eloise |
| 2015 | The Blackcoat’s Daughter | Eloise |
| 2016 | Nerve | Venus “Vee” Delmonico |
| 2017 | Who We Are Now | Jess |
| 2018 | In a Relationship | Hallie |
| 2018 | Billionaire Boys Club | Sydney Evans |
| 2018 | Little Italy | Nicoletta “Nikki” Angioli |
| 2018 | Time of Day | Herself |
| 2019 | Paradise Hills | Uma |
| 2019 | UglyDolls | Wedgehead |
| 2020 | The Hunt | Yoga Pants |
| 2020 | Holidate | Sloane |
TV Shows
| Year | TV Show | Role |
| 2004-2007 | Unfabulous | Addie Singer |
| 2004 | Drake & Josh | Addie Singer |
| 2006-2012 | Punk’d | Herself |
| 2007 | The Hills | Herself |
| 2010 | Jonas L.A. | Herself |
| 2011 | Take Two with Phineas and Ferb | Herself |
| 2011 | Extreme Makeover: Home Edition | Herself |
| 2013 | Family Guy | Amanda Barrington |
| 2013-2014 | American Horror Story: Coven | Madison Montgomery |
| 2014 | Delirium | Lena Haloway |
| 2014-2015 | American Horror Story: Freak Show | Maggie Esmerelda |
| 2015-2016 | Scream Queens | Chanel Oberlin |
| 2017 | American Horror Story: Cult | Serena Belinda |
| 2018 | American Horror Story: Apocalypse | Madison Montgomery |
| 2019 | American Horror Story: 1984 | Brooke Thompson |
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