Until They Sail is a 1957 American black-and-white CinemaScope drama film directed by Robert Wise and starring Jean Simmons, Joan Fontaine, Paul Newman, Piper Laurie, and Sandra Dee. The screenplay by Robert Anderson, based on a story by James A. Michener included in his 1951 anthology Return to Paradise, focuses on four New Zealand sisters and their relationships with U.S. Marines during World War II.