Question: Can Jedi and Sith actually read thoughts? In this movie, Vader was able to realize that Luke was thinking about Leia during their fight on the Death Star. If he could read Luke's thoughts, even though Luke is also a powerful Force-user (not a weak-minded person), how come Jedi in the past couldn't detect the thoughts of other strong Force-users? For example, why didn't Mace, Yoda, or other powerful Jedi find out that Anakin was keeping a secret about his marriage to Padme, the way that Luke was keeping a secret about having a twin sister?
Question: Why did Vader stop Luke when he tried to strike at the Emperor with his lightsaber? I know he said earlier that he has to obey his master, but he keeps encouraging Luke to give in to the dark side. If he hadn't stopped Luke, Luke could have given in to his anger and killed the Emperor, and also rid Vader of the Emperor at the same time.
Question: In an answer for one of the other questions here, it says that Leia doesn't know she is adopted until Luke tells her that they are siblings. If she doesn't know, why would he use the term "real mother" when asking her about her mother? It seems that if she didn't know she was adopted, she would think it was strange for him to ask about a "real" mother.
Question: If I am correct, this movie takes place about one year after Luke left Yoda's training in "Empire Strikes Back." Why does Yoda think that he requires no further training? In the prequels and the "Clone Wars" TV show, Jedi apprentices went through several years of difficult situations and trials before finally being named as Knights or Masters.
Question: How did Luke learn to construct a new light saber (after losing his old one in the fight with Darth Vader)? Yoda seems like the only person who could have taught him, but Luke hasn't been back to see him since he lost his old one (Luke's line to Artoo about "keeping a promise to an old friend" makes it clear that this is the case). Was it part of their earlier training on Dagobah?
Question: In the making of the movie, there's this song being sung by one of the slaves girl's at Jabba's Palace, that's also featured in the original "Star Wars Battlefront II" in the assault mode. What is the song in question?