Question: Who is credited with launching the "Spaghetti Western" film genre, John Woo, or Sergio Leone?
Sentence (from "John Woo"): Woo has directed several notable Hong Kong action films, among them, "A Better Tomorrow" (1986), "The Killer" (1989), "Hard Boiled" (1992), and "Red Cliff" (2008/2009).
Relevant evidence: No