Many years ago, a band of muscular men emerged in the flickering darkness. They flexed, got their vests dirty and shot at stuff. They had many names, often diminutive – Sly, Arnie, Bruce – for they were beloved by the people. But their might could not withstand the capriciousness of man. The time came to pass when the people tired of pecs and bullets. They longed for novelty, for hobbits and American Pie. Thus Hollywood moved on from action heroes, just as the movieverse now must move on from the age of the superhero. Saturation on every platform – cinemas,...