Star Wars was nothing but a Western-style horse-opera set in deep space.
Good guy in white, bad guy in black, damsel in distress (the baddie destroys her ranch,) old gunslinger who is virtually a legend teaches the young nubbin some new gunfightin' tricks, old gunslinger gets gunned-down in showdown, damsel is rescued and the baddie put to flight.
Take away the six-shooters and give them lasers and light-sabers, take away the horses and give them X-Wing and Tie-Fighters. Move the whole thing to space and dazzle the audience with special effects.
Put simply, a plot (in space-age guise) that had been done to death by the 1950s.
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