The Seven Year Itch is a 1955 American romantic comedy film directed by Billy Wilder, from a screenplay he co-wrote with George Axelrod from the 1952 three-act play. The film stars Marilyn Monroe and Tom Ewell, who reprised his stage role. It contains one of the most iconic pop-culture images of the 20th century – Monroe standing on a subway grate as her white dress is blown upwards by a passing train. The titular phrase, which refers to a waning interest in monogamous relationship after seven years of marriage, has been used by psychologists.

Romantic comedy is a subgenre of comedy and romance fiction, focusing on lighthearted, humorous plot lines centered on romantic ideas, such as how true love is able to surmount most obstacles. In a typical romantic comedy, the two lovers tend to be young, likeable, and seemingly meant for each other, yet they are kept apart by some complicating circumstance until, surmounting all obstacles, they are finally united. A fairy-tale-style happy ending is a typical feature.