Star Wars (1977)
Almost indifferently shot (it's only real sense of style is in trying to ape serials with old fashioned wipe edits) but with a magic of it's own that is generally quite delightful.
It's exciting hokum with fun chases, fights, interesting spaceship design, calls to adventure, evil to vanquish.
Luke is a touch dull, bit too worthy and spends more time moping about a crazy old man he just met than his actual family who have raised him for years.
But the other characters more than make up for that. Harrison ford and Carrie Fisher have a pleasing sparring chemistry getting some of the best lines fired at each other, not quite His Girl Friday for sure but that movie didn't have laser swords and giant metal moons.
Though the political world view is simplistic it fills it's actual universe with details that are often quite funny and feels 'real' and lived in as opposed to sterile.
Several sequels and prequels followed, some of which had better elements (notably the laser sword fighting) but none managed to be as good as this one.