) you can almost hear in his voice that he knows the Droids. I think the way Alex Guinness played the roll, you could almost of put anything in the PT and his acting would of made it seem true, or at least likely. He has this very vague sense in all his lines... And his face always looks as if he knows something he's not telling anyone.What I wonder, is if Darth Vader notices R2 when he shoots him in the Death Star trench. He worked with R2, for what... 13 years?