In The Mouth Of Maddness
wouldn't call it my favorite, but haven't seen it mentioned
Colossus - The Forbin Project
the 60's version(or thereabouts), dated but still good
soilent green is one
i can think of that makes you think of what is plausible.
Dune all time fav.. Blade Runner just about any sifi movie even alot of the old B type..