Revenge of the Sith happened approx. 20 years before Star Wars: A New Hope...I give it 6 out of 10 's mainly for the special effects. only time will tell if this episode will turn into a classic.
If your interested in reading some of the Star Wars books and look at the Star Wars timeline to finding out some of the blank spaces between the movies check out these sites:
http://www.randomhouse.com/delrey/starwars/timeline.html
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