One of my pet peeves of the relationship of Luke and Anakin Skywalker comes in the form of the talk Luke has with Obi Wan after meeting him for the first time. Obi Wan explains that he knew Luke's father and that Anakin was killed by a young pupil that Obi Wan was training. At this point Anakin and Darth Vader are referred to as two separate characters which at this point in the story presents no problems.
So when Darth Vader later reveals that he is Luke's father, Anakin Skywalker, we are presented with a serious issue that cannot be explained unless you come to the conclusion that Obi Wan Kenobi is a liar. Obviously Lucas intended for Anakin and Darth Vader to be two different characters at the beginning but decided it would be very cool and super dramatic if the trilogy's chief villain turned out to be the protagonist's own father.
How awesome! Great idea. Oh wait!
Lucas had already established the aforementioned separate characters via a clear and easily understood explanation by Obi Wan in the first film. So how do you get around this giant boulder of an obstacle?
In Return of the Jedi Lucas tried to side step this conundrum in the most clumsy way possible by having Obi Wan explain to Luke that there are differing points of view in the world and he'd better get used to it. He, Obi Wan, wasn't lying earlier when he told Luke his father was betrayed and murdered by Darth Vader per se he was just coloring this version of the truth with his personal point of view.
Unfortunately this is a giant pile of bull crap.
It doesn't work very well and nearly everyone feels uncomfortable with it for the most part. Hey, we still watched Return of the Jedi and all three prequel films so it wasn't exactly a total show stopper but it was a flagrant and avoidable error.
So what should Lucas have done? The Darth Vader/Anakin reveal is just too juicy to give up. There must have been some way to make it all work and make a modicum of narrative sense without turning a noble and beloved character, Obi Wan Kenobi, into a self serving liar.
Here's what occurred to me one day while I was watching Revenge of the Sith. Imagine the following scenario:
Obi Wan Kenobi and Anakin Skywalker are best of friends and are closer to the same age. Anakin is say 23 while Obi Wan is 28. They are both fully trained Jedi Knights and frequently work as partners doing the good work of the Jedi Council. Qui Gon Jinn is an older, more seasoned Jedi around 40. Yoda has trained both Anakin and Obi-wan (which is the way it was explained in Empire eliminating the second big lie of Obi-Wan during the prequels that Qui Gon was his master when he had already told Luke, as a force ghost, that Yoda had trained him).
What Obi Wan, Yoda, Qui Gon and the rest of the Jedi council don't know is that Palpatine has been slowly corrupting Anakin for a long time. Anakin doesn't turn practically overnight as was depicted in the prequels and he sure as hell doesn't turn because he's afraid of losing Padme. They don't marry but they've definitely been intimate together enough times for her to be pregnant.
Anakin suffers from a form of schizophrenia fed by the dark side of the force and with Palpatine's guidance develops two separate personalities. Palpatine shields the Jedi from this knowledge as it works perfectly with his plans.
Palpatine instructs Anakin to disguise himself while he operates as Darth Vader, even wearing full head gear and speaking with a voice synthesizer. Obi Wan is tricked into training Darth Vader by Palpatine explaining that the young Vader was in an accident that left him disfigured. Anakin plays the role of Darth Vader convincingly, creating a sympathetic character that Obi Wan accepts and the ruse is complete.
At some point during a mission Obi Wan and the Council are told that Darth Vader has killed Anakin and escaped thus freeing both Anakin and Darth Vader from the Jedi. Only Palpatine knows the truth and as a powerful Sith Lord he has complete control over the situation and is free to move forward with his schemes with Darth Vader as his pawn.
Now lets stop a second and think about this. When Darth Vader ultimately reveals that he is Luke's father the whole galaxy is in shock, not just Luke. Imagine the impact of this.
It is a huge missed opportunity that while creating drama that ascends off the charts it also completely acquits Obi Wan of any deception on his part. His honor is never taken away to serve as a clumsy filler for a gaping plot hole.
I don't pretend that the scenario I described doesn't have problems but I personally would have found it all to be much more satisfying. Consider other events that would have been altered. Imagine the scene where Anakin murders the young Jedi padawans. Suppose Darth Vader is seen on the security tapes. At this point no one knows why Vader killed Anakin and he may have still engendered some sympathy, especially from Obi-Wan. The scene wouldn't have been quite as heart wrenching as Obi-Wan watching Anakin kill children but it would have still held plenty of emotional weight and the audience knows its really Anakin. Then Obi-Wan's battle on Mustafar is even cooler since we see him battling Darth Vader nearly to the death instead Anakin who frankly never attained a fraction of the gravitas of his alter ego.
None of it matters now as the Star Wars saga has long since been etched in stone which is a bit of a shame IMHO.
