A review from The Movie Snob:

Star Wars Episode III: Revenge of the Sith (B-). This movie is not about surprises. Every fan knows that several things have to happen between Episodes II and IV: the Jedi Knights must be crushed, the Republic must give way to the Empire, and Anakin Skywalker must father twins, turn to the Dark Side of the Force, and don the famous black armor of Darth Vader. The only question is whether George Lucas has made it an enjoyable ride. The answer is an equivocal yes. The action sequences are generally good, and the climactic battle between Obi-Wan Kenobi and Anakin is very good. (I still don’t buy Yoda flipping around like a ninja version of Kermit the Frog, though.) The dramatic scenes are generally bad, and Lucas proves again that he can’t write dialogue. (I can imagine Natalie Portman’s sigh of relief when production wrapped on this thing; Padme’s role in this movie is pitiful.) I am also very confused about the philosophy underlying these movies. At one point, Obi-Wan criticizes the Sith (the bad guys) because only they deal in absolutes, but at the same time the Jedis are the ones with the strict code of ethics and seemingly “absolute” refusal to use the powers of the Dark Side. And yet, the Jedis are also looking for a “chosen one” to bring “balance” to the Force. Balance between what, good and evil? Beats me. Anyhoo, I rank this movie ahead of Episodes I and II and behind all the rest; my friends who saw the movie with me put it ahead of Return of the Jedi as well. You be the judge.