Idaho Transfer (a failure of film making but an interesting failure)

Millennium (lousy adaptation of Varley's bizarro novel)

Grave of the Fireflies (some people have lived through the end of their world)

and of course the expensively bad Day After Tomorrow (yaaaawn, weary Oedipal drama amid gee-wow SFX and questionable physics)

Fahrenheit 451 (the end of our cultural world)

Rapa Nui (easter island drama, schlocky but at times somewhat engaging)

when you think about it the whole Star Trek mythos as fully developed via the movie series and TNG, is a post-apocalyptic redemption story (as someone insightfully pointed out on another thread):  humanity wrecks itself and is rescued by benevolent aliens (Vulcans as I recall) who offer (here we go) clean miracle-energy technologies and moral guidance.  it's a happy ending grafted onto an implicit crash-n-burn story.

The difference between theory and practise in practise ...