The Lady Vanishes (1979)
On the eve of World War II, zany heiress Amanda Kelly travels by train to Switzerland. While passing through Germany, she meets a sweet elderly lady, who suddenly vanishes. Distraught, she questions her fellow passengers who claim that the woman was never there. Unsure if it's all in her mind or if there's a more sinister plot afoot, Amanda teams up with photographer Robert Condon to discover the truth.
Directed by: Anthony Page
Starring: Cybill Shepherd, Elliott Gould, Angela Lansbury, Herbert Lom, Arthur Lowe, Ian Carmichael
Links: IMDb, Movie posters, Movie stills