While Anatole Litvak and Kinji Fukasaku are both directors, were they both responsible for their own screenplays as well?
Anatole Litvak: Anatole Litvak (Russian: Анато́ль Литва́к ; May 21, 1902 – December 15, 1974) was a Russian-born American filmmaker who wrote, directed, and produced films in various countries and languages.
i don't know