From TIME Magazine’s 2011 Oscar Nominees: Great Performances. The text reads:

Possibly the supreme film actress of our time, with a 2008 Oscar for Michael Clayton, Swinton, 50, often plays wild or haughty women. In I Am Love, she went demure, glam and romantic as a timid wife liberated by adultery. Nurturing the project for 11 years meant “going across a very long tightrope, trying to make sure the balance is right,” she says. “We were aiming for all-out operatic drama and fantasy. But when you get to the end of the tightrope, you’re just glad to be able to kick the box.”