Luke and Solo were the two main characters in the Star Wars series. They were all heroes of their youth who had experienced many setbacks and growth. Luke longed to fly and escape from the planet that bound him. He planned to join the Imperial Military Academy. Han Solo also yearned for the life of a pilot, and his path also pointed to the Empire. They all wanted to become pilots and draw their own destiny in the starry sky. Luke's performance was relatively gentle, while Han Solo was a hooligan who was the most important to his survival. They had a complicated relationship in the series, sometimes friends, sometimes enemies. The story of Luke and Solo played an important role in the Star Wars series.
Not exactly. Batman Begins is one interpretation of Batman's origin story, but it's not the definitive or only 'real' one. Different Batman stories and adaptations offer various takes.
It might be significant as it could show the rebirth of Batman, perhaps with a new take on his character. It may also explore the relationship between Batman and Robin in this new phase.