Night of the Comet (1984).

Night of the Comet (1984)

Hey, I'm sorry if the end of the world makes me a little nervous!

   Nothing good can come of a comet vaporizing
   everyone on Earth except two Valley girls, a trucker,
   and scientists holed up in some underground think tank
   in the desert. In the empty city, nothing but dust inside
   piles of bomber jackets, legwarmers, dresses with wide,
   patent-leather belts. As if everyone laid out their clothes
   for the next day, then disappeared. But even when a girl
   picks up a Reebok and pours out the powdered remains
   of a foot, she doesn't cry. She's already begun to forget
   their faces, to ignore all the things that don't make sense--
   mirrored skyscrapers still reflecting off Wilshire, traffic
   lights that still work, the Top 40 station still broadcasting
   New Wave, heavy on the keyboards. The girls just want
   to have fun. They feather their hair and loot the mall
   for designer jeans and sunglasses. The end isn't so bad
   after all. Now they can have the whole world for free.