Gattaca was very good. I think BattleStar Galactica could be added both the original tv movie and the scify version.
You could add “Colossus: The Forbin Project” or “War games” as prequels to BattleStar or Terminator.
All four are machines vs. man movies and very well done.
I agree with you about the Forbin Project, and in fact I thought about it a few minutes after I posted before. I only saw that one for the first time a few months ago. It was definately a movie that set a theme that would return again often in “skynet,” or “War Games.” I would also put War Games on this list before I would put a lot of others. Also missing is the Day the Earth Stood Still.