PersonGianfranco Clerici8 credits in the catalogue: writing.WritingThe Bloodstained Butterfly1971WriterDon't Torture a Duckling1972ScreenplayFrom Hell to Victory1979ScreenplayCannibal Holocaust1980ScreenplayCannibal Holocaust1980StoryThe New York Ripper1982ScreenplayThe New York Ripper1982StoryDelirium: Photo of Gioia1987Screenplay