An Unmarried Woman is a 1978 film written and directed by Paul Mazursky, starring Jill Clayburgh, Alan Bates, Michael Murphy and Cliff Gorman. It was released on March 5, 1978, and was nominated for three Oscars, and won the Best Actress award at the Cannes Film Festival. The film follows Erica, as she suddenly becomes single again when her husband trades her in for a younger woman.

Erica and Martin Benton live what seems a happy life in New York City. All of Ericas' friends are either divorced, or unhappily married. All of a sudden, Ericas' happy life is shattered as her husband suddenly leaves her for a younger woman he has been having an affair with for over a year. This forces Erica to once again become a single again, and has her go through all possible emotions, from rage to sadness.

• Jill Clayburgh as Erica Benton

• Alan Bates as Saul Kaplan

• Michael Murphy as Martin Benton

• Cliff Gorman as Charlie

• Pat Quinn as Sue

• Kelly Bishop as Elaine

• Lisa Lucas as Patti Benton

• Andrew Duncan as Bob

• Daniel Seltzer as Dr. Jacobs

• Matthew Arkin as Phil

• Penelope Russianoff as Tanya

• Novella Nelson as Jean

• Raymond J. Barry as Edward

• Paul Mazursky as Hal

"Jill Clayburgh received a well-deserved Oscar nomination for playing an "ordinary" woman who goes through divorce and identity crisis in this quintessential New York film, championed by the women's movement of the 1970s."—Emanuel Levy, EmanuelLevy.comhttp://www.emanuellevy.com/search/details.cfm?id=10971

"Beautifully conveys one woman's journey from dependent security to independent self-confidence."— Frederic and Mary Ann Brussat, Spirituality and Practicehttp://www.spiritualityandpractice.com/films/films.php?id=7279