Top of the list is Star Trek II: the Wrath of Khan, which along with Star Trek IV: the Voyage Home are the best of the Star Trek movies, but IV is mostly California-based.
Star Wars, naturally. The first one. Or the first three, if you prefer. The first "first three", not the ones that were numbered 1-3. You know ... ah, forget it!!!
Aliens, the sequel had it all over the original Alien, and the others in the series (we'll just pretend those don't exist, okay?).
Total Recall: if had problems, but the special effects were cool.
Forbidden Planet, not to be confused with the off-Bway musical "Return to the Forbidden Planet", Shakespeare's long-forgotten rock and roll masterpiece, just because it's such a classic.
Others as they occur to me ...
You mean the ones with that HOTTIE Han Solo in them? ;-)
Your list is great.
I would add Earth versus the Flying Sausers.
and Robinson Cruiso on Mars.