The World Is Full of Married Men is a 1979 British romantic drama film directed by Robert William Young, based on Jackie Collins' 1968 novel of the same name.

When Linda Cooper, the wife of advertising executive David Cooper, discovers his adulterous affairs including his current one with ambitious model Claudia Parker, she decides to embark on her own affair with rock singer Gem Gemini.

"[2] It marked the first time in several years that Anthony Steel had been seen in a widely distributed film in English speaking countries.

[3] Due to its setting, the film's soundtrack, released as a double album by Ronco Records, made extensive use of disco music, including Maxine Nightingale's "Right Back Where We Started From", and even featured an appearance by famed dance troupe Hot Gossip.

"[4] Franciosa "brings a mercifully light touch", Nicholas was "uncharismatic", and Hale was "effective as a laconic wife".