Castle in the Air may refer to:
Castle in the Air is a 1952 British comedy film directed by Henry Cass and starring David Tomlinson, Helen Cherry, Margaret Rutherford and Gordon Jackson. It was adapted from the play by Alan Melville.
The impecunious owner of a haunted Scottish castle has to juggle the advances of an American heiress who wishes to buy him out, the love of his longtime assistant who wants to marry him, and a Coal Board official who wishes to commandeer the estate. The British National Coal Board wants to annex the owner's castle as a group home for local miners and their families. Wealthy, much-married American Mrs. Clodfelter Dunne (Barbara Kelly) wants to claim the castle—and its owner, the Earl of Locharne (David Tomlinson)--for herself. Meanwhile, eccentric boarder Miss Nicholson (Margaret Rutherford) is obsessed with the idea that the Earl is actually the rightful King of Scotland. There is also a beautiful ghost, played by Patricia Dainton. "Castle in the Air" was based on the popular stage play by Alan Melville.
Castle in the Air is a young adult fantasy novel written by Diana Wynne Jones, and first published in 1990. The novel is a sequel to Howl's Moving Castle and is set in the same fantasy world, though it follows the adventures of Abdullah rather than Sophie Hatter. The plot is based on stories from the Arabian Nights. The book features many of the characters from Howl's Moving Castle, often under some sort of disguise.
Castle in the Air follows the adventures of Abdullah, a handsome young carpet salesman from Zanzib, who daydreams constantly about being a stolen prince. One day a strange traveler comes to his stand to sell a magic carpet. During the night, Abdullah goes to sleep on the carpet but wakes up to find himself in a beautiful garden with a young woman. He tells the woman, Flower-in-the-Night, that he is the stolen prince of his daydreams, believing that he is in fact dreaming. Flower-in-the-Night, who has never seen a man other than her father, first believes that Abdullah is a woman, so Abdullah agrees to return the next night with portraits of many men so that she can make a proper comparison. He does so, and Abdullah and Flower-in-the-Night decide to get married.