The only criticism I have of the clip is that Dooku when he walks out of that open doorway has clearly been slowed down significantly. Also I don't think the shot immediately after (where he ignites his saber) looks right in comparison to his pose just before. Don't know if this is avoidable or not as I don't remember how it played in the original or whether you've roto'd him in from somewhere else over a clean background plate at any point. I know there must've been a reason for slowing him down to draw out the drawing of his saber by as much as you needed but nevertheless it was pretty obvious to my eye.
Also, wasn't there an early test you did of the door closing behind him? Are you planning to implement this?