sentences:  Although the director's three previous efforts had done poorly at the box office, "The Lady Vanishes" was widely successful, and confirmed American producer David O. Selznick's belief that Hitchcock indeed had a future in Hollywood cinema.The British Film Institute ranked "The Lady Vanishes" the 35th best British film of the 20th century.In 2017 a poll of 150 actors, directors, writers, producers and critics for "Time Out" magazine saw it ranked the 31st best British film ever.