In the novelization/original concepts of Revenge of the Sith just before he dies Dooku basically begs for his life. Sidious/Palpatine then more or less says that he changed his mind about hasking for Dooku's life to be spared. The other scene is when Vader kills the Separatist Council. At least in the novelization he spoke to them with dark humor: "we were promised a handsome reward!." "I am your reward; you don't me handsome?" And " . . . we were told that we would be left in peace!" " The transmission was garbled. He said left in pieces." From what I remember Christopher Lee stated that he didn't feel that it was in Dooku's character to beg for his life and George agreed. I can understand if there was dialogue in the destruction of the Separatist Council why it was cut. My question is would those scenes been better with dialogue or are they fine the way they are? Does the silence give something or take something away? Are there scenes that are not here from RotS that in your opinion could have been silent or had dialogue to enhance it?