Idris Elba, Rebecca Ferguson and Tracy Letts star in this immaculately constructed nightmare procedural that ticks down the minutes from an atomic bomb’s launch to its detonationKathryn Bigelow has reopened the subject that we all tacitly agree not to discuss or imagine, in the movies or anywhere else: the subject of an actual nuclear strike. It’s the subject which tests narrative forms and thinkability levels. Maybe this is why we prefer to see it as something for absurdism and satire – a way of not staring into the sun – to remember Kubrick’s (brilliant) black comedy Dr Strangelove, with no fighting in the war room etc, rather than Lumet’s deadly serious Fail Safe. Bigelow, with screenwriter Noah Oppenheim, broaches one of the most frightening thoughts of all: that a nuclear war could or rather will start with no one knowing who started it or who ended it. I watched this film with translucently white knuckles but also that strange climbing nausea that only this topic can create.Th...