A cinematographer has a heavy responsibility. Without a steady hand (no pun intended, trust me) guiding the direction of photography and camerawork, a film or episode of television can be poorly imagined or shot, unraveling all the hard work of a production. The stakes were especially high for the cinematography of “The Spoils of War,” one of the most intense, large-scale episodes of Game Of Thrones in the show’s seven-year history; fortunately, HBO had a veteran presence in cinematographer Robert McLachlan.