The Moon Is Blue is a 1953 American romantic comedy film produced and directed by Otto Preminger and starring William Holden, David Niven, and Maggie McNamara. Written by F. Hugh Herbert and based on his 1951 play of the same title, the film is about a young woman who meets an architect on the observation deck of the Empire State Building and quickly turns his life upside down. Herbert's play had also been a huge success in Germany, and Preminger decided to simultaneously film in English and German, using the same sets but different casts. The German-language film version is Die Jungfrau auf dem Dach.

Otto Ludwig Preminger was an Austrian-American theatre and film director, film producer, and actor. He directed more than 35 feature films in a five-decade career after leaving the theatre. He first gained attention for film noir mysteries such as Laura (1944) and Fallen Angel (1945), while in the 1950s and 1960s, he directed high-profile adaptations of popular novels and stage works. Several of these later films pushed the boundaries of censorship by dealing with themes which were then taboo in Hollywood, such as drug addiction, rape and homosexuality. He was twice nominated for the Academy Award for Best Director. He also had several acting roles.