- I know my hour is come.
- Not so, my lord.
- Nay, I am sure it is, Volumnius.

8 seconds sound clip from the Julius Caesar (1953) movie soundboard.

You can hear this line at 01:55:39 in the DVD version of the movie.

Quote context

[...]

- Peace, then. No words.

- I'd rather kill myself.

- Come hither, good Volumnius. List a word.

- What says my lord?

- Why this, Volumnius.

- The ghost of Caesar hath appeared to me two several times by night, at Sardis once, and this last night here in Philippi fields.

- I know my hour is come.

- Not so, my lord.

- Nay, I am sure it is, Volumnius.

- Thou seest the world, Volumnius, how it goes.

- Our enemies have beat us to the pit. It is more worthy to leap in ourselves than tarry till they push us.

- Thou know'st that we two went to school together. Even for that our love of old, I prithee, hold thou my sword-hilts, whilst I run on it.

- That's not an office for a friend, my lord.

[...]