Ben Affleck — the magnificent bastard-slash-director-actor-writer who last brought us “The Town,” the most Massachusetts-est film since “The Departed” — explores no less exotic territory in “Argo,” the unwieldy, truth-y story of Americans who faked a movie shoot in 1979 Iran as cover for the rescue of six hostages. This is, it seems, a Tinseltown tale like Affleck’s Superman meditation “Hollywoodland”: A roundabout interrogation of the intersecting notions of patriotism, heroism, and entertainment. Just with tight denim instead of spandex. Ben, by the way, looks grrrrreat in those jeans and that beard — credit due to wardrobe. And casting: That’s Bryan Cranston, John Goodman, and Alan Arkin starring alongside him. This film, in short, looks wicked awesome.