4:55 - Force Priestess (Serenity): "We have been waiting for you, Master Yoda." Vader greets Obi-Wan the same way in A New Hope: "I've been waiting for you, Obi-Wan" [1:30:09].
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Starting at 15:10 there's a musical cue of "Battle of the Heroes" from Revenge of the Sith.