The song is perhaps most famously performed by Marilyn Monroe in the 1953 film "Gentlemen Prefer Blondes". Monroe's character, Lorelei Lee, has been followed on a Transatlantic ocean liner by a detective hired by her fiancé's father, who wants assurance that she is not marrying purely for money. He is informed of compromising pictures taken with a British diamond mine owner and cancels her letter of credit before she arrives in France, requiring her to work in a nightclub to survive. Her fiancé arrives at the cabaret to see her perform this song, about exploiting men for riches. Diamonds are an element in another story line in the film, in which Lorelei is given a diamond tiara by the mine owner, in gratitude for her recovering the photographs. In a later scene, Jane Russell, who played opposite Monroe, sang "Diamonds Are a Girl's Best Friend" in court, while pretending to be Lorelei.