My all time favourite documentary is The World at War. Made by the BBC in the early 70's, they weave a narrative through the second world war, and then actually interview people who were there - on both sides! Interviewing Russians while in the middle of the cold war was so very cool of them!

It's like looking at living history today. Almost all the people who are interviewed are no longer alive; so you can never get this sort of footage today.

I just realised which sub I'm in. I clicked the wiki link about documentaries, and this documentary was the first recommendation anyway - so I'll take it as permission to hit the "save" button!

Previously answered requests for documentary recs.