"The Day the Earth Stood Still" - A true classic and the first anti-nuke movie.
"Forbidden Planet" - Shakespeare in space and a serious Leslie Neilsen? What's not to love?
"Silent Running" - As we work to wipe ourselves out of existence, there's still hope.
"They Live" - You just have to have a silly alien invasion story.
"Logan's Run" - SciFi is at its best when it holds a light up to society. Commentary on the cult of youth in modern society for the win.
I respect the choices; they're all classics. But if I had to summarize your vibe here it would be: Preachy. Silent Running in particular is my go to example of "too heavy handed for its own good".
If you had to pick something from the last 30 years, is it safe to guess that District 9 would be on the list? Maybe Mute?
Edit: Adding in "Things to Come" to the list seems very on brand.
