There's really nothing that can be said about the 1980's that hasn't already been said. In short, it was a fun, vapid, poppy, shallow, optimistic, and overwhelmingly materialistic decade that was reflected in both popular consumer and popular entertainment products.
The 1980's were undeniably the first decade to be truly ruled by popcorn pictures. It is only natural that such a surface-driven decade would ignore some of the best of the best of the films released within it. Films started getting lost in the cogs of the machines that were theatrical and home video releases. Many films were mis-marketed, released at the wrong time of the year, or simply just too unique for their own good.
The following 100 films are representations of some (but certainly not all) of those films. These films have value as entertainment, as art, or, as the best often do, a large dose of both.