Question: What movie is Chynna Phillips' half-sister who was born in 1959 best known for?
Sentence (from "Mackenzie Phillips"): Laura Mackenzie Phillips (born November 10, 1959) is an American actress and singer best known for her roles in "American Graffiti", as rebellious teenager Julie Mora Cooper Horvath on the sitcom "One Day at a Time", and for the Disney Channel science fiction show "So Weird".
Relevant evidence: Yes