Chancellor Palpatine/Darth Sidious: [Triumphantly] POWER! UNLIMITED… POWER! [sends Windu flying out the window to his death]
Anakin Skywalker: [Horrified] What have I done…?!
Sidious: You’re fulfilling your destiny, Anakin. Become my apprentice. Learn to use the Dark Side of the Force.
Anakin: [exhausted] … I will do whatever you ask.
Anakin: Just help me save Padmé’s life. I can’t live without her.
Sidious: To cheat death is the power only one has achieved, but if we work together…I know we can discover the secret.
Anakin: I pledge myself…to your teachings…to the ways of the Sith.
Sidious: Good. Good. … The Force is strong with you! A powerful Sith, you will become! Anakin Skywalker, you are one with the Order of the Sith Lords. Henceforth, you shall be known as Darth… Vader.
Darth Vader: Thank you, my master.
Anakin Skywalker: I saw your ship. What are you doing out here?
Padmé Amidala: I was so worried about you. Obi-Wan told me terrible things.
Anakin: What things?
Padmé: He said…that you turned to the Dark Side…that you…killed younglings…
Anakin: Obi-Wan is trying to turn you against me.
Padmé: He cares about us.
Padmé: He knows. He wants to help you. Anakin, all I want is your love.
Anakin: Love won’t save you, Padmé. Only my new powers can do that.
Padmé: But at what cost? You’re a good person! Don’t do this!
Anakin: I won’t lose you the way I lost my mother. I am becoming more powerful than any Jedi has ever dreamed of, and I’m doing it for you. To protect you.
Padmé: Come away with me. Help me raise our child. Leave everything else behind while we still can!
Anakin: Don’t you see? We don’t have to run away anymore! I have brought peace to the Republic. I am more powerful than the Chancellor, I… I can overthrow him! And together, you and I can rule the galaxy; make things the way we want them to be! You don’t believe me, do you?
[Padmé slowly backs away from Anakin, shocked]
Padmé: [shocked] I don’t believe what I’m hearing! Obi-Wan was right… you’ve changed!
Anakin: [angry] I don’t want to hear any more about Obi-Wan. The Jedi turned against me. The Republic turned against me. Don’t you turn against me!
Padmé: [crying] I don’t know you anymore! Anakin…you’re breaking my heart! You’re going down a path I cannot follow!
Anakin: [confused] Because of Obi-Wan?
Padmé: Because of what you’ve done! What you plan to do! [pleading desperately] Stop! Stop now… come back! I love you!
Anakin: [Enraged and paranoid at seeing Obi-Wan in the main hatchway of her cruiser] LIAR!
Padmé: [looks back and sees Obi-Wan, then turns back to Anakin; horrified] NO!
Anakin: You’re with him! You brought him here to kill me!! [begins to Force-choke Padmé]
Obi-Wan Kenobi: Let her go, Anakin!
Padmé: [struggling to breathe] Anakin…
Obi-Wan: Let… her… go.
[Anakin releases Padmé; she collapses into unconsciousness]
[Vader has just choked Padmé into unconsciousness]
Darth Vader: You’ve turned her against me!
Obi-Wan Kenobi: You have done that yourself!
Vader: YOU WILL NOT TAKE HER FROM ME!
Obi-Wan: Your anger and your lust for power have already done that. You have allowed this Dark Lord to twist your mind, until now…until now you have become the very thing you swore to destroy.
Vader: Don’t lecture me, Obi-Wan! I see through the lies of the Jedi! I do not fear the Dark Side as you do! I have brought peace, freedom, justice, and security to my new Empire!
Obi-Wan: [incredulously] Your new Empire?
Vader: Don’t make me kill you.
Obi-Wan: Anakin, my allegiance is to the Republic! To democracy!!
Vader: If you’re not with me, then you’re my enemy!
Obi-Wan: Only a Sith deals in absolutes. I will do what I must.
Vader: You will try.
Obi-Wan Kenobi: [anguished] You were the Chosen One! It was said that you would destroy the Sith, not join them! Bring balance to the Force, not leave it in darkness! [picks up Anakin Skywalker’s lightsaber]
Darth Vader: I HATE YOU!!!
Obi-Wan: You were my brother, Anakin! I loved you.
*GATHERED VIA: Wikiquote