Found some pretty cool color footage on YouTube of Queen Elizabeth II's coronation:
The listing says it's colorized but someone else says it's actually color footage filmed in Technicolor, and i think that's true because the colors look natural and not added later, and also the part where she's crowned is from a different angle than the black and white TV footage, and you can see the Archbishop place the crown on her head. In the TV footage they cut away at that point and they didn't show it.
it's interesting to compare and contrast with Charles III's coronation.