This one is easy. If at any time in your life you subscribed to Star Wars Insider, acted like Yoda, quoted Darth Vadar when speaking to your siblings, you will enjoy this movie. If you are not a big Star Wars fan and found the other 6 mildly entertaining, you may enjoy this as a rental. I thought it was pretty well done and while nothing like the movies, thought it was a fun movie.

PS- You may not have known this, but the Cartoon Network had a micro series of the Clone Wars a few years ago, you can usually rent them from most movie rental stores- I think there were like 25 smaller stories, and there are some tidbits of neat info in there, like how General Grevious gets injured and has a hard time breathing.