Yeah, the sight of Natalie Portman in a skimpy outfit has no place in a PG-13 rated film. Especially one where the hero slaughters little kids, gets his other three limbs chopped off, then bursts into flames on camera, while his mentor and friend stands around and watches. ;)
OK, I see what you mean...though for some crazy reason, the DVD version I have has ROTS rated both G and PG on the cover--and not PG-13.