"While dystopian movies deal with a society gone wrong, post-apocalyptic movies take place in a world where society has ended. In one way, the concept is actually quite optimistic, as it presumes that no matter how the world ends, someone will survive to keep mankind going.
In recent years, zombies have been particularly popular instigators of the apocalypse, which already earned them an entire Screen Rant list. But there's plenty of other scary, satirical, sad or silly depictions of our world after the end."