Her character Rita, who works in a munitions factory, has just sent her 9-year-old son George (Elliott Heffernan ... And that’s maybe “Blitz” in a nutshell: not a perfect movie, but a truly moving one ...

Yes, it’s a revival of a 31-year-old musical that’s based on a 74-year-old black-and-white movie. And both are as fuzzily remembered by young audiences as the main character, Norma Desmond ...