@fridjitzu @the-printing-press @ddurandals
I did SO much research for ya'll that I couldn't fit it in a reply ;_;
Flags are typically flown in a VERY specific pattern; Host country on the furthest left, followed by alphabetical order. The UN specifically does English Country Name Left-to-Right, UNLESS hosted in the US, in which case it is hung separately.
We can tell a couple of things from the Canadian flag hanging in the 4th spot from the left of the camera frame. First off, due to the alignment of the Canadian Flag, we can confirm the top of each flag is on the left. Meaning they are being hung vertically, not horizontally. The Canadian flag tells us these are country flags, not state flags for whatever region this scene is in.
From this, we know that the Red/White/Blue flag on the left side of the gap is specifically a left-red, white-middle, Blue-right tricolor flag. Technically there are no CURRENT country flags matching both this description and shade without a symbol.
However! France did lay claim to this flag from 1790-1794, and is the only country to have a flag with the correct shades. In fact, their current flag is just a reversal of that one, so I think it is same to assume it is intended to be the French flag, and was hung at an incorrect alignment by someone too lazy to confirm. Or they relied on AI, which also tried to tell me it was a French flag. F definitely is after C, so we can infer a left-to-right display.
Now, we can tell the flag on the right is top-red, white-middle, blue-bottom tricolor with a symbol within it. There are SO MANY flags with this color scheme, so I cut out all the ones with incorrect shades, the ones that weren't for major countries and the ones that had no symbol. We can also tell the symbol is wholly within the white stripe, thus removing countries such as Croatia where the symbol overlaps the other stripes. Since we know the Flag before the gap is France, we can also assume it comes after France alphabetically.
This leaves us with Paraguay. Unless it is ALSO hung upside-down, but all of those have clearly different (or no!) Symbols.
This means that gap can hold anything between France and Paraguay. In a current UN line up of 193 flags, this means that there are MANY countries that should have been in between. Like 62 of them. I choose to hope we didn't lose 62 countries, so I looked at the UN Founders Flag list, which only holds 51, and coincidentally uses the Old, reversed French Flag. Yay! That fixes the upside down issue!
Now. The bad news is. That still leaves 17 missing flags: Greece, Guatemala, Haiti, Honduras, Iceland, India, Iran, Iraq, Lebanon, Liberia, Luxemburg, Mexico, Netherlands, New Zealand, Nicaragua, Norway and Panama.
I took a moment here, and compared the rest of the UN Founders Flag Lineup to the wall. And I was horrified to learn Canada wasn't one of the founders. On a personal level because this is my home and I'm kinda pissed we weren't a founder. This is important because this means they were NOT using the Founders set-up. Meaning I did not need to write all those countries. It means one of two things.
A) We really did lose 61 countries between now and that scene, and I highly doubt they are all listed in the movie or book as being gone, so we will never know which one survived.
B) The Artists/Set designers literally didn't care enough to check what order they should be hung in. Which sucks because this took me like an hour. It means we can not reasonably ascertain which one is missing. And also bothers me on a professional level as I can't break into the industry but the guy that decided to ignore such a basic concept did? Ouch.
I am 99% certain that we cannot possibly know what flag is there, because to find out would require information never provided or a pattern that doesn't exist.