by Contents
Movie
| Year | Movie | Role |
| TBA | Mona Lisa and the Blood Moon | |
| TBA | Shriver | |
| 1998 | Desert Blue | Skye Davidson |
| 1998 | Ricochet River | Lorna |
| 1999 | 200 Cigarettes | Cindy |
| 2000 | Dr. T & the Women | Dee Dee Travis |
| 2000 | Almost Famous | Penny Lane |
| 2000 | Gossip | Naomi Preston |
| 2000 | About Adam | Lucy Owens |
| 2001 | The Cutting Room | Chrissy Campbell |
| 2002 | The Four Feathers | Ethne Eustace |
| 2003 | Le Divorce | Isabel Walker |
| 2003 | Alex & Emma | Emma Dinsmore |
| 2003 | How to Lose a Guy in 10 Days | Andie Anderson |
| 2004 | Raising Helen | Helen Harris |
| 2005 | The Skeleton Key | Caroline Ellis |
| 2006 | You, Me and Dupree | Molly Peterson |
| 2008 | Fool’s Gold | Tess Finnegan |
| 2008 | My Best Friend’s Girl | Alexis |
| 2009 | Bride Wars | Liv Lerner |
| 2009 | Nine | Stephanie Necrophuros |
| 2010 | The Killer Inside Me | Amy Stanton |
| 2011 | A Little Bit of Heaven | Marley Corbett |
| 2011 | Something Borrowed | Darcy Rhone |
| 2013 | The Reluctant Fundamentalist | Erica |
| 2014 | Wish I Was Here | Sarah Bloom |
| 2014 | Good People | Anna Wright |
| 2015 | Rock the Kasbah | Merci |
| 2016 | Kung Fu Panda 3 | Mei Mei |
| 2016 | Mother’s Day | Jesse |
| 2016 | Deepwater Horizon | Felicia Williams |
| 2017 | Marshall | Eleanor Strubing |
| 2021 | Music | Kazu “Zu” Gamble |
TV Show
| Year | TV Show | Role |
| 1996 | Party of Five | Cory |
| 1997 | EZ Streets | Larraine Cahill |
| 2000 | Saturday Night Live | Herself / Host |
| 2012–13 | Glee | Cassandra July |
| 2013 | Clear History | Rhonda Haney |
| 2015 | Jamie & Jimmy’s Friday Night Feast | Herself |
| 2015 | Running Wild with Bear Grylls | Herself |
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