The World Is Full of Married Men is the debut novel of British author Jackie Collins, first published in 1968 by W. H. Allen & Co. Set in London in the swinging sixties, middle-aged advertising executive David Cooper cheats on his wife Linda.

[citation needed] The book was banned in Australia, New Zealand and South Africa,[1] but the scandal bolstered sales in the United Kingdom and the US.

Romantic novelist Barbara Cartland called the book "nasty, filthy and disgusting", and charged Collins with "creating every pervert in Britain".

The film version was set in the late 1970s (as opposed to the novel's 1960s setting) and featured American stars Anthony Franciosa and Carroll Baker as David and Linda Cooper, and included Gareth Hunt, Anthony Steel, Paul Nicholas, Georgina Hale, John Nolan, Jean Gilpin, Alison Elliott, and Stephanie Marrian, the Sun Newspaper's first page 3 girl in supporting roles.

Due to its setting, the film made much use of disco music and even featured an appearance by famed dance troupe Hot Gossip.