It’s easier to describe Rosemarie DeWitt’s performance by first saying that she doesn’t give one. She simply becomes Rachel — fully, effortlessly, luminously. As the long-enduring sister of the wayward Kym (the excellent Anne Hathaway), DeWitt resists any impulse to “show” us her feelings. But boy, do we get it! Her presence, her listening are electrifying. We get every detail of her history with her sister, with her family. She is the lynchpin of the story and we cannot take our eyes off her.
A scene finally comes when, on the morning of her wedding, she opens her door and there is Kym, broken and bruised from a car crash. Wordlessly she brings her sister in and cradles her in the bath. It took my breath away. Both DeWitt and Hathaway are remarkable, but DeWitt’s work confidently anchors every scene. She infuses Rachel with so much strength and wisdom and grace, we want to know this astonishing woman. We can’t get enough of her.