Question: Do both films Four Flies on Grey Velvet and Vigilante Force have the directors that share the same nationality?
Sentence (from "Dario Argento"): He also co-wrote the screenplay for Sergio Leone's" Once Upon a Time in the West"( 1968) and served as George A. Romero's script consultant on" Dawn of the Dead"( 1978), of which he also composed the soundtrack with his long- time collaborators Goblin.
Relevant evidence: No