It often takes a few decades, if not centuries, to gain dramatic perspective on history. By contrast, the plight of the individual, the foot soldier as it were, remains poignantly unchanged through millennia. ’71 is a thriller set in Belfast at a fevered point in the Troubles, some months before Bloody Sunday. Its central protagonist is a young British soldier only a few days into his first tour. It is a thriller, I suppose, in so far as it weaves together action, suspense and jeopardy. What makes it more than that is the tight focus on its subject’s experience as he becomes detached from his group when a search operation goes wrong. This subjectivity may be as simple as keeping the camera close on the features of Private Hook (rising star Jack O’Connell) as he wanders,