On a sunny afternoon, a man is sitting in the shade, by a tree in Montmartre cemetery, Paris, on the edge of the tomb of Falconetti (1892-1946). She gained unforgettable recognition as Jeanne d’Arc in Carl Theodor Dreyer’s 1928 silent film The Passion of Joan of Arc. Later, she took her life in Buenos Aires. Now this man (Jean-Marie Straub), playing with his walking stick, keep...