When Harry Met Sally... is a 1989 American romantic comedy film

Romantic comedy film

Romantic comedy films are films with light-hearted, humorous plotlines, centered on romantic ideals such as that true love is able to surmount most obstacles. One dictionary definition is "a funny movie, play, or television program about a love story that ends happily"...

 written by Nora Ephron

Nora Ephron

Nora Ephron is an American film director, producer, screenwriter, novelist, playwright, journalist, author, and blogger.She is best known for her romantic comedies and is a triple nominee for the Academy Award for Writing Original Screenplay; for Silkwood, When Harry Met Sally... and Sleepless in...

 and directed by Rob Reiner

Rob Reiner

Robert "Rob" Reiner is an American actor, director, producer, writer, and political activist.As an actor, Reiner first came to national prominence as Archie and Edith Bunker's son-in-law, Michael "Meathead" Stivic, on All in the Family. That role earned him two Emmy Awards during the 1970s...

. It stars Billy Crystal

Billy Crystal

William Edward "Billy" Crystal is an American actor, writer, producer, comedian and film director. He gained prominence in the 1970s for playing Jodie Dallas on the ABC sitcom Soap and became a Hollywood film star during the late 1980s and 1990s, appearing in the critical and box office successes...

 as Harry and Meg Ryan

Meg Ryan

Margaret Mary Emily Anne Hyra , professionally known as Meg Ryan, is an American actress and producer. Raised in Bethel, Connecticut, Ryan began her acting career in 1981 in minor roles, before joining the cast of the CBS soap opera As the World Turns in 1982...

 as Sally. The story follows the title characters from the time they meet just before sharing a cross-country drive, through twelve years or so of chance encounters in New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. The film raises the question "Can men and women ever just be friends?" and advances many ideas about love that became household concepts, such as those of the "high-maintenance" girlfriend and the "transitional person".

The origins of the film came from Reiner's return to single life after a divorce.