I don't know if this has been covered here before but I ALWAYS heard Vader speak with an English inflection in the OT, just as all the other people in the Empire did. His Rs are definitely British in all three movies, without question, and Sebastian Shaw was British and spoke his dialogue accordingly. So WHY did Lucas ignore this fact and cast an American as Anakin Skywalker??? Vader even loses his English inflection at the end of "Sith"! This is one of the MANY things that has always bothered me about the PT, so anyone care to speculate on this?