In every good movie, you need a really good protagonist. In Star Wars, Luke Skywalker is there to fill all of your Romantic protagonist needs. Portrayed as the boy who's parents died at an early age, Skywalker lives with his aunt and uncle. He lives in a seemingly corrupt disutopia where crime is an every day ordeal, yet, through all of this, Luke remains optomistic about the future and the things to come. He manages to stay away from the crime and corruption by keeping a level head and a positive attitude about the crumbling universe around him until the day his aunt and uncle are killed by imperial troops (spoilers!).
What really focuses the attention on the Romantic aspects of Skywalker was his ability to step out of the norm of people of his world and into the Jedi world where everything was new and different. He takes his family's death as an obligation to fight back against the evil things of the universe using the Force, taught to him by his friend and mento, Obi-Wan Kenobi.
These feats that were overcome by Luke Skywalker give him the persona of the ultimate Romantic hero.