Question: Who was the director of the 1968 Metrocolor Cold War era suspense and espionage film that had its screenplay written by the novelist who wrote under the pseudonym Ian Stuart?
Sentence (from "Alistair MacLean"): His works include "The Guns of Navarone", "Ice Station Zebra" and "Where Eagles Dare" – all three were made into popular films.
Relevant evidence: No