Also Known As:
Ausschweifende Leben des Marquis de Sade, Das (1969)
Liebesabenteuer des Marquis S, Die (1969)
This film was directed by Roger Corman, and sort of feels like it, too. All in all, while not exactly historically accurate, it's a uniquely 60's drama about de Sade's life. It aims more for "art" than information.
(information by MelodyLee)