You know, I never thought of it before, but Luke and Leia are very close to Lui e Lei.
I am afraid a different sentence as "She is my only hope." would be translated into Italian exactly in the same way. Is it possible to differ my suggestion from the one here in Italian?
Yes, you could include a subject pronoun. "She" is "lei", so it could be "Lei e' la mia unica speranza."
I have a question about the pronunciation of the z letter. Is it like "dz"? "esperandza"?
Tem a pronúncia de "dz" e "tz", mas quando são duas, "zz". Como: pizza, ragazzo