Complex sentence: The screenplay, written by the director's wife, Natto Wada, is based on the novel "Nobi" (Tokyo 1951) by Shohei Ooka, translated by Ivan Morris as "Fires on the Plain" (New York: A.A. Knopf, 1957).
Split into simpler sentences: The screenplay, written by the director's wife, Natto Wada, is based on the novel "Nobi" (Tokyo 1951) by Shohei Ooka, translated as "Fires on the Plain". Translation by Ivan Morris (New York: A.A. Knopf, 1957).