O ver the decades since the second world war, the “blitz spirit” has been in danger of becoming a slightly trite article of national faith. Most recently invoked during the Covid-19 pandemic, it is used to imply a uniquely British pluck; the notion of stoicism as a resource that the UK can always call upon in times of adversity. Inevitably, the “blitz spirit” is a phrase most commonly used by people who don’t remember the blitz. This is partly because anyone who can remember the blitz is now at least in their late 80s. But it’s also because, as a lived experience, the blitz was clearly not something that lent itself to sentimental homilies. This wonderful, moving film is, for both of those reasons, a hugely important piece of social history. The voices of these witnesses to the Luftwaffe’s “lightning war” are variously lyrical, wistful, resolute and deeply regretful. We see them as they play with grandchildren, visit old haunts, attend yoga classes.…