Question: Do both films Four Flies on Grey Velvet and Vigilante Force have the directors that share the same nationality?
Sentence (from "Four Flies on Grey Velvet"): Four Flies on Grey Velvet( Italian: 4 mosche di velluto grigio) is a 1971 Italian giallo film written and directed by Dario Argento, from a story by Luigi Cozzi( who also served as assistant director).
Relevant evidence: Yes