The Sleeping Prince: An Occasional Fairy Tale is a 1953 play by Terence Rattigan. Set in London in 1911, it tells the story of a young actress, Elsie Marina, who meets and ultimately captivates Prince Charles of Carpathia.
Marilyn Monroe bought the rights to the play and subsequently produced The Prince and the Showgirl (1957), with Rattigan also writing the screen adaptation. The film was directed by and costarred Olivier, who reprised his role as Prince Charles. Although it was a box office disaster in its day, the New York Times credits Olivier with extracting a "delightful, comic performance" from Monroe.