1) You can get a lotof mileage out of only taking the first movie as established fact and using the rest of the films as inspiration. Anakin Skywalker and Darth Vader are not necessarily one and the same. Luke, Leia, and Darth may not be related. Darth Vader's dark master is not necessarily the Emperor. Jabba could be merely a local thug or an intergalactic criminal mastermind able to threaten the Empire.
2) Should some characters receive Get Out Of Death Free cards? I'm kinda thinking major villains only work when they are recurring villains. No GM-created villain should get more than a single 1-Up. But I'm willing to cut Darth Vader or Boba Fett a bit moe slack than that. PCs should also get at least one Miraculous Escape if the bad guys get such consideration.