Topic Challenge: Movies/TV-shows with post-apocalyptic settings [completed]

Question

Last week saw the release of Mad Max: Fury Road, continuing the Mad Max series after 30 years. So we're starting a new weekly topic challenge from 2015-05-18 00:00 UTC to 2015-05-24 23:00 UTC asking for any kind of question about any movie or TV-show set in a post-apocalyptic environment.

^{(The original suggestion was about a Mad Max challenge. But given that this is definitely not the last big-franchise movie this year, I thought it a better idea to broaden the scope a little, concentrating on a whole genre/setting which that particular series has been quite influential in. The topic might be a bit broad and fuzzy, but I'm sure we can get the corresponding questions sorted out reasonably easily.)}

Once the challenge is over, we'll tally the results and winners (by question votes) here. Also don't forget to suggest and vote for new topics for our next possible challenge.

Answer 1

The challenge is over and the top-voted question (with a score of 6 and ~6230 views) was asked by tedder42, which makes him the winner of this challenge:

1. What was the silver "valhalla spray" in Fury Road?

The other questions asked, in order of votes are (the numbers are the votes and views):

2. Why sudden change in war boy's motives? (5 / ~153)

3. What's the relation between the different clans? (4 / ~59)

   Significance of the Crows in Mad Max: Fury Road (4 / ~631)

4. What all was on Max's back? (3 / ~105)

5. What liquid was being carried in the tanker? (2 / ~153)

6. Who are the Many Mothers in Mad Max: Fury Road? (0 / ~134)