Corrected entry: After Anakin gets his arms and legs mutilated by Kenobi, he is transported to a facility to adapt the bionic parts to him. Amidala is delivering the twins about the same time. It's obviously all for the sake of drama, but it makes absolutely no sense that a society so technologically developed as to have invented hyperspace jumping, had not invented a simple glass cover, or even an umbrella to shield Anakin from the rain while transporting him, nor painkillers or a way to sedate him through the medical procedure. Amidala is delivering the old-fashioned way, so apparently they haven't invented cesarea either. This is unacceptable, even for our universe.
Corrected entry: The final scene of the movie shows Vader and the Emperor looking out at the Death Star being constructed. This doesn't fit with the storyline as there is almost 20 years between episodes 3 & 4, that is quite a slow construction. Compare this to the time in which the second and more powerful death star is almost finished. Some time could be accounted for through prototype versions and testing, but not 20 years.
Corrected entry: What the heck happened to Yoda between the trilogies? In Episode III, he was strong, wise, solemn, like Mace Windu. But when Luke meets him in Episode V, he's nearly insane. He says to Luke, "Away put your weapon, I mean you no harm." while cowering to Luke's blaster. Yoda is a Jedi Master & very strong in the Force. Why is he nothing like he was in the 1st trilogy?
Corrected entry: For someone who needs a mask in order to breathe, Vader does a good job of screaming loudly while on the operating table.
Corrected entry: After Padme gives birth, her body was sent to her home planet to be laid to rest. Presumably this is a week or two later. However if you look at her stomach, it is partially inflated - can't be the babies, and wouldn't be gases either, given she's clearly been prepared for burial.
Corrected entry: In Return of the Jedi, both Luke Skywalker and Obi-Wan Kenobi were not aware that there was another Skywalker, Leia, until Yoda explained to them. In Revenge of the Sith, it was very obvious that Obi-Wan was holding Luke and Leia was born while he was still nearby. Therefore the fact Obi-Wan did not know about Leia is somewhat strange.