How is it he never knew about the cruel things you did, especially to our own mother.

4 seconds sound clip from the The Fall of the Roman Empire (1964) movie soundboard.

You can hear this line at 01:42:23.460 in the Blu-ray version of the movie.

Quote context

[...]

- It's what you are doing now!

- You're lying.

- Don't you suppose I know that it was you who poisoned father against me.

- I did not have to.

- Father knew about the cruel things you did.

- How is it he never knew about the cruel things you did, especially to our own mother.

- I was in the room when she died. When our mother died... Remember? I heard her beg you: Lucilla, why do you hate me so? If I've done anything to hurt you, forgive me. And you let her die without a word. Wasn't that cruelty?

- There was a reason.

- Reason? What was it? Tell me?

- Nothing.

- Tell me. Tell me!

- Caesar! You are unarmed. Even a woman with a dagger can be dangerous.

- She has no dagger. She is my sister. Leave us.

[...]