American actress, singer, and writer. She has appeared in films such as Kids, Men in Black II, 25th Hour, Sin City, Clerks II, Rent, Death Proof, The Rundown, Eagle Eye, Alexander, Seven Pounds, Percy Jackson and the Olympians: The Lightning Thief, and Unstoppable.
Dawson dated former Sex and the City star Jason Lewis for two years. They lived together in Los Angeles until they separated in November 2006. She started dating director Danny Boyle in 2012, after having been cast in his upcoming movie Trance.