Favorite Sci-fi or Privacy movies/tv?

I just noticed this is sci-fi or privacy recommendations, and considering that I’m shocked that no one has mentioned Dune (the books) yet. The original six by Frank Herbert:

1. Dune
2. Dune Messiah
3. Children of Dune
4. God Emperor of Dune
5. Heretics of Dune
6. Chapterhouse: Dune