The Lady Vanishes(1938)
Videos: Trailers, Teasers, Featurettes
On a train headed for England a group of travelers is delayed by an avalanche. Holed up in a hotel in a fictional European country, young Iris befriends elderly Miss Froy. When the train resumes, Iris suffers a bout of unconsciousness and wakes to find the old woman has disappeared. The other passengers ominously deny Miss Froy ever existed, so Iris begins to investigate with another traveler and, as the pair sleuth, romantic sparks fly.
The Lady Vanishes - watch online: streaming, buy or rent
Currently you are able to watch "The Lady Vanishes" streaming on Amazon Prime Video. It is also possible to buy "The Lady Vanishes" on Apple iTunes as download or rent it on Apple iTunes online.