In the 2002 film version 
In the 2002 film version of The Importance of Being Earnest, she played Cecily. In 2000's Little Nicky, her character was Angel Holly. When she lived in Pleasantville, she was Jennifer, but in Vanity Fair, she was Becky Sharp. She handed out muffins and gum as Tracy Flick in an attempt to win the titular Election, and she has played Elle Woods twice. For 10 points, name this actress who starred opposite Joaquin Phoenix as June Carter in Walk the Line.
In the 2002 film version of The Importance of Being Earnest, she played Cecily.