What was the nationality of the director of a 1945 film adaptation of an Agatha Christie novel?
René Clair:  Clair's best known films include "The Italian Straw Hat" (1928), "Under the Roofs of Paris" (1930), "Le Million" (1931), "À nous la liberté" (1931), "I Married a Witch" (1942), and "And Then There Were None" (1945). And Then There Were None (1945 film): And Then There Were None is a 1945 film adaptation of Agatha Christie's best-selling mystery novel of the same name, directed by René Clair.
i don't know