McCormack was born in Epsom, Surrey, England. She is of part Irish ancestry as one of her grandfathers was Irish.[3] Her mother died of lupus when McCormack was six years old and her steelworker father subsequently raised her and her brother Stephen.[4] She was brought up as Roman Catholic[5] and attended the Convent of Our Lady of Providence. She went on to study at the Oxford School of Drama.[6]
Career
Film
McCormack's first important role was as the character Murron MacClannough in the multiple Academy Award-winning film Braveheart (1995). Her screen debut was as the lead in the Anna Campion-directed film Loaded (1994). She has subsequently stated that she had a "miserable time with the director (Anna Campion)... it was my first film job, I needed to be mollycoddled, I needed to be helped through it, and I wasn't. Mostly, it was a horrible experience."[4]
McCormack has shown a preference in her career for the theatre,[4] saying that "theatre really is an actor's medium: you're on stage with no director anymore, whereas in film very rarely do you get much rehearsal other than running through the scene very quickly. Then everyone comes in and shoots it."[8] McCormack was one of the original 2006 London cast of Patrick Barlow's play of The 39 Steps.[9] In 2008, she performed the role of Nora in A Doll's House,[10] directed by Peter Hall at the Theatre Royal, Bath, and also the role of Isabel Archer in a stage adaptation of The Portrait of a Lady,[11] both of which commenced their runs in July 2008, ending in August, before transferring to the Rose Theatre in Kingston later that year.