What Italian movie is based on a play written by the author of "Les Enfants Terribles"?
The Mystery of Oberwald: The Mystery of Oberwald (Italian: Il mistero di Oberwald ) is a 1981 Italian drama film written, directed, and edited by Michelangelo Antonioni and starring Monica Vitti, Paolo Bonacelli, and Franco Branciaroli. The Mystery of Oberwald:  Based on the 1946 play "L'Aigle à deux têtes" by Jean Cocteau, the film is about a man who breaks into the castle at Oberwald to kill the queen but faints before doing so. Jean Cocteau:  Cocteau is best known for his novel "Les Enfants Terribles" (1929), and the films "The Blood of a Poet" (1930), "Les Parents Terribles" (1948), "Beauty and the Beast" (1946) and "Orpheus" (1949).
The Mystery of Oberwald