Marsha Mason is an American actress and theatre director. She has been nominated four times for the Academy Award for Best Actress for her performances in Cinderella Liberty (1973), The Goodbye Girl (1977), Chapter Two (1979), and Only When I Laugh (1981). The first two also won her Golden Globe Awards. She was married for ten years (1973–1983) to the playwright and screenwriter Neil Simon, who was the writer of three of these films.

Cinderella Liberty is a 1973 American drama film adapted by Daryl Ponicsan from his 1973 novel of the same title. The film tells the story of a sailor who falls in love with a prostitute and becomes a surrogate father for her 10-year-old mixed race son. The film stars James Caan, Marsha Mason and Eli Wallach, and was produced and directed by Mark Rydell.