Benediction: a case of Sassoon the man v Sassoon the legend

Terence Davies’ Benediction, a biopic of Siegfried Sassoon, portrays two iterations of the First World War poet: the embattled soldier of the trenches and the embittered elder statesman, but is the man behind the poetry to be seen? Dr Chris Kempshall, a historian specialising in portrayals of the First World War in popular culture, considers how Benediction tackles what we think we know