Star Wars: The Empire Strikes Back -
Darth Vader: You are beaten. It is useless to resist. Don't let yourself be destroyed as Obi-Wan did.
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: 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: He told me enough! He told me you killed him!
Darth Vader: No. I am your father.
Luke: No...no. That's not true. That's impossible!
Darth Vader: Search your feelings, you know it to be true!
[Luke cries in anguish]
Luke: No! No!
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.
Darth Vader: Come with me, it is the only way.