STAR WARS: EPISODE I - THE PHANTOM MENACE (1999): Two Jedi Knights escape a hostile blockade to find allies and come across a young boy who may bring balance to the Force, but the long dormant Sith resurface to reclaim their old glory.
Star Wars: Episode III - Revenge of the Sith (2005)
I think this is the best one from the prequel series. The first half hour is a bit too much like the previous two, but then it caught my attention. I'm going to give Ewan McGreggor credit for his performance, job well done!