Mad Max Fury Road. They defeat the tyrant, and get the control of the water valves. Then they open the valves and seemingly keep them open. One problem, how long is the water reservoir gonna last now?
Logan’s Run. The city dwellers are freed from the computer’s iron-fisted rule, and Carrousel. But their city is in ruins, and thinks to the computer providing everything. They don’t know how to live without it. The city dwellers are going to start dying off real fast.
A lot of horror movies end with like two people surviving, or even a man and a woman who hug each other or kiss and walk into the sunset. Good luck with your PTSD and knowing all your friends and or family members dies horribly and you got to see it.
I think about this for most action movies as well.