I Am Your Father (The Empire Strikes Back)

Darth Vader: There is no escape! Don't make me destroy you! Luke, you do not yet realize your importance! You have only begun to discover your power! Join me and I will complete your training! With our combined strength, we can end this destructive conflict and bring order to the galaxy!

Luke Skywalker (angrily): I'll never join you!

Darth Vader: If you only knew the power of the Dark Side! Obi-Wan never told you what happened to your father!

Luke Skywalker: He told me enough! He told me you killed him!

Darth Vader: No! I am your father!

Luke Skywalker: No! No! That's not true! That's impossible!

Darth Vader: Search your feelings! You know it to be true!

Luke Skywalker: NOOOOOOOO! NOOOOOOOO!

Darth Vader: Luke, you can destroy the Emperor! He has foreseen this! It is your destiny! Join me and together we can rule the galaxy as father and son! Come with me! It is the only way!