The Lady Vanishes
Written by Sidney Gilliat and Frank Launder , based on the 1936 novel "The Wheel Spins" by Ethel Lina White , the film is about a beautiful English tourist travelling by train in continental Europe who discovers that her elderly travelling companion seems to have disappeared from the train . 
<triplet> The Wheel Spins <subj> 1936 <obj> publication date <subj> Ethel Lina White <obj> author