The critically acclaimed Darkest Hour brings the number of films about Winston Churchill released in the last decade to six, and that’s not counting the top-rating TV and cable dramas in which the quotable curmudgeon has made a more than cameo appearance. Hollywood’s tendency to cater to a populist agenda (as witnessed by its hypocritical, arse-covering desperation to climb aboard the #metoo bandwagon) have made sure that half a century after his death, Churchill’s public stock remains astonishingly high.