Star Wars: The Force Unleashed II2010

Darth Vader:
You are still haunted by visions?

Starkiller:
Yes, Master. I sometimes smell a forest on fire. I see the General falling, and I feel the ground shake as a starship crashes around me. I hear a woman's voice when I try to sleep.

Darth Vader:
They are memories of a dead man. A side effect of the cloning process and the memory flashes used to train you. They will fade.

Starkiller:
And if they don't?

Darth Vader:
Then you will be no use to me. Starkiller's emotions made him weak. You must destroy what he created. And you must learn to hate what he loved.