MSNBC has a great new article about potential plot holes that may or may not be filled by Episode III. It is a great piece that suggests that Lucas should take a look at "unaddressed questions that a viewer has every right to have answered." We agree, and here's the first two of the ten:

1) Leia. Yes, she kicked butt, but you get the sense George Lucas never quite knew what he wanted to do with her. (It's also a fair bet that when writing the original "Star Wars," he hadn't yet decided on her being Luke's sister.)

We eventually learn her backstory ? raised as a princess on Alderaan by Bail Organa ? but her purpose in the rebellion seems diminished after Luke appears. Perhaps Han Solo is meant to be her consolation prize, but (and no golden bikini comments here) why doesn't Anakin Skywalker's daughter get more of a role?

It's truly puzzling because Leia seems to have at least nascent Force powers. Unless there's some weird father-to-son midichlorian genetics at work, she presumably should have as much Jedi potential as Luke.

"You have a power I don't understand, and could never have," she tells Luke in "Return of the Jedi." He replies, "You're wrong, Leia, you have that power too. In time, you'll learn to use it as I have."

Yet all she gets are hints and glimmers while Luke gets the full Jedi treatment. Why?

Odds of resolution: 3 in 10. Leia's appearance in "Sith" is likely to be limited.

2) Vader and family. When exactly does Vader figure out that Luke is his son, and why can't he sense a Force connection with Leia ? especially when he tortures her in Episode Four?

One hole was tightened in Lucas' "Empire" DVD. In the theater version, the Emperor describes Luke as a "great disturbance in the Force," but doesn't really tie him to Vader.

In the new edit, the Emperor insists Luke is "the offspring of Anakin Skywalker."

"How is that possible?" asks Vader.

"Search your feelings, Lord Vader, you will know it to be true."

No, thanks. We're still wondering when Vader figures it all out.

Plus, if both Luke and Leia are spirited away soon after being born, how come Vader learns about one but not the other? In one theory, Vader believes Leia died along with her mother. Why, then, would Luke have survived?

Which brings us to the matter of Padm?'s potential demise. Luke has "no memory" of his mother. Leia says she "died when I was very young," yet remembers "images, feelings. She was very beautiful, kind, but very sad." Unlikely, then, that Padm? dies in childbirth, though she presumably passes away while the twins are still babies, presumably before Leia is spirited off to Alderaan.

The timeline of the twins' birth, separation and concealment is essential.

Odds: 7 in 10 on the twins and Padm?, 4 in 10 on Vader.