A song from the movie - Saturday Night Fever

"How Deep Is Your Love" is a pop ballad written and recorded by the Bee Gees in 1977 and released as a single in September. It was ultimately used as part of the soundtrack to the film Saturday Night Fever. It was a number three hit in the United Kingdom and Australia. In the United States, it topped the Billboard Hot 100 on 24 December 1977 (becoming the first of six consecutive US number-one hits) and stayed in the Top 10 for a then-record 17 weeks. The single spent six weeks atop the US adult contemporary chart. It is listed at number 22 on the 55th anniversary edition of Billboard's All Time Top 100.[1] Alongside "Stayin' Alive" and "Night Fever", it is one of the group's three tracks on the list. The song was covered by Take That for their 1996 Greatest Hits album, reaching number-one on the UK Singles Chart for three weeks.[2]

"How Deep Is Your Love" ranked number 375 on Rolling Stone's list of the 500 Greatest Songs of All Time. In a British TV special shown in December 2011, it was voted "The Nation's Favourite Bee Gees Song" by ITV viewers.[3] The song set a record by accumulating 33 weeks in one chart run. Originally intended for Yvonne Elliman, but she later recorded "If I Can't Have You" instead.[4]

During the Bee Gees' 2001 Billboard magazine interview, Barry reportedly said that "How Deep Is Your Love" was his favorite Bee Gees song.[5]

Saturday Night Fever is a 1977 American dance film directed by John Badham and starring John Travolta as Tony Manero, a young man whose weekends are spent visiting a local Brooklyn discotheque; Karen Lynn Gorney as Stephanie Mangano, his dance partner and eventual friend; and Donna Pescow as Annette, Tony's former dance partner and would-be girlfriend. While in the disco, Tony is the king. His care-free youth and weekend dancing help him to temporarily forget the reality of his life: a dead-end job, clashes with his unsupportive and squabbling parents, racial tensions in the local community, and his associations with a gang of macho friends.

A huge commercial success, the film significantly helped to popularize disco music around the world and made Travolta, already well known from his role on TV's Welcome Back, Kotter, a household name. The Saturday Night Fever soundtrack, featuring disco songs by the Bee Gees, is one of the best-selling soundtracks of all time.[5] The film is the first example of cross-media marketing, with the tie-in soundtrack's single being used to help promote the film before its release and the film popularizing the entire soundtrack after its release. The film also showcased aspects of the music, the dancing, and the subculture surrounding the disco era: symphony-orchestrated melodies; haute couture styles of clothing; pre-AIDS sexual promiscuity; and graceful choreography.

The story is based upon a 1976 New York magazine article by British writer Nik Cohn, "Tribal Rites of the New Saturday Night". In the mid-1990s, Cohn acknowledged that he fabricated the article.[6] A newcomer to the United States and a stranger to the disco lifestyle, Cohn was unable to make any sense of the subculture he had been assigned to write about; instead, the character who became Tony Manero was based on a Mod[7] acquaintance of Cohn's. In 2010, Saturday Night Fever was deemed "culturally, historically, or aesthecially significant" by the Library of Congress and therefore preserved for all time in their National Film Registry.

The sequel Staying Alive (1983) also starred John Travolta and was directed by Sylvester Stallone.