Rebecca Augusta Miller, Lady Day-Lewis (born September 15, 1962) is an American independent filmmaker and novelist, known for her films Angela, Personal Velocity: Three Portraits, The Ballad of Jack and Rose, The Private Lives of Pippa Lee, and Maggie's Plan, all of which she wrote and directed. Miller is the daughter of Arthur Miller, a Pulitzer Prize-winning playwright, and his third wife Inge Morath, a Magnum photographer.
Miller was born in Roxbury, Connecticut, to Arthur Miller, a notable playwright, and Austrian-born Inge Morath, a photographer. Her younger brother, Daniel, was born in 1966. Her father was Jewish,, whereas her mother was Protestant. For a time during childhood, Miller practiced Catholicism on her own accord. She has said that she stopped thinking of herself as a Christian "somewhere at the end of college". Miller remembered her childhood in Roxbury as being surrounded by artists. Sculptor Alexander Calder was a neighbor; so were choreographer Martha Clarke and members of the experimental dance troupe Pilobolus. Immersed in drawing, Miller was tutored by another neighbor, sculptor Philip Grausman.