Rebecca Augusta Miller, Lady Day-Lewis is an American filmmaker and novelist. She is known for her films Angela (1995), Personal Velocity: Three Portraits (2002), The Ballad of Jack and Rose (2005), The Private Lives of Pippa Lee (2009), and Maggie's Plan (2015), all of which she wrote and directed, as well as her novels The Private Lives of Pippa Lee and Jacob's Folly. Miller received the Sundance Film Festival Grand Jury Prize for Personal Velocity and the Gotham Independent Film Award for Breakthrough Director for Angela.

Personal Velocity: Three Portraits is a 2002 American drama film written and directed by Rebecca Miller. It stars Kyra Sedgwick, Parker Posey, and Fairuza Balk as three women who escape from their afflicted lives as each struggle to flee from the men who confine their personal freedom.