GL stated C3PO and R2D2 are characters adapted from Akira Kurosawa's "The Hidden Fortress", I beg to differ. C3PO, R2D2 and Darth Vader seem to similiar to characters in a cartoon I used to watch in my youth titled "The Mighty Hercules". Even though The "Hidden Fortress" was made in 1958, five years earlier than "The Mighty Hercules", C3PO seems to similiar to a centaur in the series named "Newton". Newton has a sidekick named "Toot" who communicated by mean's of a flute too similiar to R2D2 chirps and beeps. Darth Vader you ask? his mannerism and fate seems similiar to a villain named "Mask of Vulcan" who was more powerful than any man until his mask was removed, rendering him powerless. It could all just be a coincidence, heck even Juggernaut (Xmen Villain) has the same weakness as Vader and The Mask, oh well.