These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Darkest Hour
Earn Your Happy Ending: The film ends with a limited number of survivors (including a few of the protagonists) going to rendezvous, effective weapons against the aliens developed, and the possibility that the aliens will just up and leave once they're done taking what they need.