The Lady Vanishes (1938) is a thriller film directed by Alfred Hitchcock and adapted by Sidney Gilliat and Frank Launder from the 1936 novel The Wheel Spins by Ethel Lina White. It stars Margaret Lockwood, Michael Redgrave, Paul Lukas and Dame May Whitty, and features Cecil Parker, Linden Travers, Naunton Wayne, Basil Radford, Mary Clare, Googie Withers, Catherine Lacey and Sally Stewart.
The Lady Vanishes was one of Hitchock's last films to be made in the U.K. – only 1939's Jamaica Inn came before he moved to Hollywood and began making films there for David O. Selznick, starting with Rebecca, released in 1940. It was the great success of The Lady Vanishes, after a slump of three films that were not hits, that made it possible for Hitchcock to negotiate a very good deal to work in the States.
A remake, also entitled The Lady Vanishes, was made in 1979.