Considered by many to be one of the most realistic (and hence scariest) depictions of nuclear war.
https://en.wikipedia.org/wiki/Threads_(1984_film)
Other free sources that work in MX, maybe elsewhere too:
https://fawesome.tv/movies/10647273/threads
https://tubitv.com/es-mx/movies/531445/threads
https://flixhouse.com/video/2599/threads

Not sure what that video thumbnail is all about, I don’t think that’s in the film. It does look very similar to this official poster, but the character in question isn’t laden with belts of bullets, and it’s bandages on his face, not a mask. Also, he’s a traffic warden, basically pressed into armed service as society collapses.
I thought the image in the thumbnail looked a bit too new to be from a movie released in 1984.
Yeah, definitely. I’d bet someone has made it using AI rather than use the correct image.
Yeah, quite common clickbait tactic on Youtube. IIRC there’s a browser extension that replaces those clickbaity images with a genuine screenshot, can’t remember the name ATM
The extension is DeArrow from the same developer making our lives better with SponsorBlock.
That’s the one, thanks!