Question: Who is best known for his work with American-Canadian film-maker best known for his series of gruesome and satirical horror films? 
Sentence (from "George A. Romero"): George Andrew Romero ( ; February 4, 1940 – July 16, 2017) was an American-Canadian filmmaker, writer and editor, best known for his series of gruesome and satirical horror films about an imagined zombie apocalypse, beginning with "Night of the Living Dead" (1968), which is often considered a progenitor of the fictional zombie of modern culture.
Relevant evidence: Yes