imperialscum said:
I can... but anger is not one of them. Well at least not on Vader's side.
And losing patience in a sense of swiftly ending the fight has nothing to do with anger. He came to the point where Luke was physically cornered and he had move to the final step of his plan.
You said this and also something about Vader being cool and calculating (which he is) but his characterization is not flat and cartoonish in Empire like it was in Star Wars. There's a reason why he's shown in his pod on the Executor -- it's to give his character more depth. He's sneaking around behind the Emperor's back. He's personally going down onto Hoth to apprehend Skywalker himself. The whole thing is personal. He starts the film obsessed with Luke and ends the film even more obsessed with Luke.
Neither is the Bespin duel a flat scene. As in all good film scenes, Vader the character changes from beginning to end. It's not a static good guy and bad guy trying to overcome each other fight. Vader starts out with tons of patience. He wants the fight to drag on. He wants to see what Luke is made of. He expresses disappointment when he thought Luke had fallen into the freezing chamber so easily. There's a glee in his voice when he realizes Luke escaped and the fight could go on.
After awhile though, he's clearly getting annoyed at Luke's resistance and wants to end the fight as quickly as possible. Watch the manner in which he violently swings his lightsaber during the final stanza of the fight. Listen to the sound effects, how increasingly explosive they sound. The subtle inflections to Vader's voice. He's annoyed and the uncontrollable rage is slowly building within him. And yet, when he overpowers Luke, he still doesn't harm him. He simply holds the blade in front of Luke's face and threatens him. Luke fights back and physically hurts him, and that sends Vader over the edge. He chops off Luke's hand and has to hold back when he says "don't make me destroy you." --If you listen carefully, I've always thought those words sounded different than Vader's previous empty threats. He really kinda actually means it that time. But then again, he pulls back, and his next lines are filled more with exasperation and pleading than anything else.
imperialscum said:
It is not seething... it is disappointment.
I don't think Vader ever expresses any disappointment until he walks off the bridge of the Executor at the end of the film. When he leaves Bespin, he's still trying to cool off from the fight. He's not acting like a madman, but when he says "bring my shuttle" he definitely sounds like someone who is not happy and just got done fighting an emotional and draining battle. The change to "alert my star destroyer blah blah blah" just sounds like someone who was doing their every day job. The entire film worked tirelessly to humanize Vader and make his obsession with Luke personal. The change in dialogue, thus, does not match.