She spent the majority of her childhood practicing ballet after having her first lesson when she was three. She joined the Pi Beta Phi sorority in college.
In 2005, she married Ben Affleck. Then in 2015, the couple announced they were separating. She and Affleck have two daughters, Violet and Seraphina, and a son, Samuel. She was married to actor Scott Foley from 2000 to 2004.