Why is there a difference in epII and Return of the Jedi of who Luke's uncle and aunt are? In Return, Obi-Wan tells Luke that "When your father left, he didn't know that your mother was pregnant.Your mother and I knew he would find out eventually, but we wanted to keep you both as safe as possible, for as long as possible. So I took you to live with my brother Owen on Tatooine... and your mother took Leia to live as the daughter of Senator Organa on Alderaan." Now, in epII, Anikin goes looking for his mother and meets Owen Lars, his step brother...how is that possible? Why would Obi-Wan take Luke back to the planet Anikin was from and not only live with Anikin's step brother, but not change Luke's last name...if they were trying to keep Luke a secret? And why was Leia's last name changed to Organa?