This, free on YouTube, a movie playing into the Nuclear Armageddon fears of the late 20th Century.
Not bad, and I lived in London just a couple of years after it was produced, so - while to me it looked dated (severely) - I was also there. So curious. A fair summary of what to expect following a Nuclear Holocaust, although I have to admire the British View that "Governance" of any sort would survive and take effect. Not bad, not great, merely a period film that taps into a lot of our unconscious social fears and conditionings.
It's still the endgame, but there are more imminent fears to boondoggle us...