Question: Are the directors of films The Dark Stairway and Killers from Space both from the same country?
Sentence (from "Killers from Space"): Killers from Space( a.k.a. The Man Who Saved the Earth) is a 1954 independently made American black- and- white science fiction film, produced and directed by W. Lee Wilder( brother of Billy Wilder), that stars Peter Graves, Barbara Bestar, Frank Gerstle, James Seay, and Steve Pendleton.
Relevant evidence: Yes