This comment relates to the point made about Bill Nighy being double-listed as himself and Graham Greene in the credits for Dangerous Edge. Perhaps the director did this intentionally. Greene did have a thing about doubles. In his novel The Human Factor, the character of Castle says: "Everybody in the world, so they say, has a double" (294). Greene scholar Robert Hoskins writes that the idea of doubles was close to Greene's heart. Greene's autobiography, Ways of Escape, ends with a chapter about HIS double: a man who apparently went around claiming to be Graham Greene and turned up, Prof. Hoskins writes, "at unpredictable times and places around the world, sometimes reaching the destination before Greene himself did." Greene's work refers to doubles in many places. The epigraph to his first novel, The Man Within, is a quote from Sir Thomas Browne, "There's another man within me who is angry with me." So either the director intentionally used the credits as a bit of mischief making (like Greene himself often did) or was of two minds about who Mr. Nighy was suppose to be: Graham Greene the person or Graham Greene the character.
Interestingly, Bill Nighy is incorrectly listed as appearing as "self" in this although he is appearing as Graham Greene, who is not Bill Nighy.