Katherine Mathilda "Tilda" Swinton is a British actress and fashion muse known for both arthouse and mainstream films. She has appeared in a number of films, including Burn After Reading, The Beach and The Chronicles of Narnia, and was nominated for a Golden Globe for her lead performances in The Deep End and We Need to Talk About Kevin. She won the Academy Award for Best Supporting Actress for her performance as lawyer Karen Crowder in Michael Clayton in 2007.