It is a kind of miracle. I can drive to Ludlow, and watch this niche film about the intellectual Hannah Arendt, going to Jerusalem to report the trial of Eichmann. She’s a distinctive, demanding character, who takes no prisoners and often exasperates her friends. But she’s fiercely intelligent, and this is that rare treat – a film about thinking. We’ve had the slushy side, Zhivago or Keats composing their poetry on screen, but this is a close, unsentimental portrait of how the writing business might actually work. No sex, no explosions and a lot of talk – but it’s magical.