Cecilia, as played by Knightley with stunning style, speaks rapidly in that upper-class accent that sounds like performance art. When I hear it, I despair that we Americans will ever approach such style with our words, which march out like baked potatoes. She is so beautiful, so graceful, so young, and Robbie may be working as a groundsman but is true blue, intelligent and in love with her. They deserve each other.
- Roger Ebert on Atonement