There’s at least one moment in “Blonde,” Andrew Dominik’s dazzling, depressing and fatally incurious movie about Marilyn Monroe, when you might not be sure if you’re watching Ana de Armas or the genuine article. Like his great 2007 western, “The Assassination of Jesse James by the Coward Robert Ford,” “Blonde” has been conceived as a slow-motion death march: “The Assassination …
