It is all so very clear now why you came... To destroy me.

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

You can hear this line at 01:59:26.657 in the Blu-ray version of the movie.

Quote context

[...]

- We have won the Senate. We have yet to win Rome.

- Rome is with you. The army's with you. I'll be with you.

- March against Commodus. With you as Caesar all Rome will change.

- You've defeated me. Haven't you?

- Since it was for Rome it cannot be your defeat.

- It is all so very clear now why you came... To destroy me.

- I could kill you, both!

- As for the Senate...

- If you will try to oppose the will of the Senate...

- I will not oppose the will of the Senate. We'll allow your barbarians to settle, but you...

- You are no longer second in command to Caesar.

- You will return to your northern frontiers, and you will patrol them forever. Until it is my pleasure to change my mind.

[...]