The original Star Wars movies were so loved because: -Spaceships and laser swords are cool. -It's WW2 in space mixed with a Western in space. All-American tropes like gunslinger and fighter pilot, but in a space opera. -It has a religion that is real. Yes its kind of cringey 1970's California Buddhism but it's still in there. Plus the religion assists with laser sword fights. -The setting has a delightful archaeo-futurist tone. It's after the fall of a cleaner, better civilisation ("an elegant weapon....from a more civilised time...") and it has a mix of hard sci-fi tech and scrappy junkyard tech plus all kinds of aliens that just exist as a kind of backdrop. -The acting is fine, the pacing is excellent, the dialogue has just enough exposition to let you figure out what's going on but not too much to ruin the mystery. -Nothing like it had ever been made. It felt genuinely new. And the scale of the story was so large, it felt impossibly epic. For the 70's it really did blow people's minds.