Who says that we have to write off all Doomsday catastrophes as spelling out the total and eternal doom of humanity? Sure, the "doom" part is in the term, but people are resilient creatures, and if they can survive a cataclysm, they can find some shred of happiness in the aftermath. They might even rebuild comfortable lives. Or they might not survive at all — but that's something that some people are ready and willing to accept.
Most of the movies on this list are zombie movies because fictional humans just seem to find it easier to find peace among the undead and tangible monsters than in the aftermath of terrifying viruses and nuclear radiation, I guess. In any case, if you're in search of a silver lining point of view, these films feature at least one character who's decided that the end of the known world isn't that bad
