- That'll be all, Joyce.
- Yes, sir. Sorry, sir.

4 seconds sound clip from the The Bridge on the River Kwai movie soundboard.

You can hear this line at 01:19:50.795 in the Blu-ray version of the movie.

Quote context

[...]

- On your feet! Away to the debriefing room. Come on, move yourselves, move! Move quickly!

- Very clumsy, Joyce, very clumsy.

- Always use your knife immediately. Immediately, man! You see? He's gained the initiative.

- Wait a minute! I'm terribly sorry, sir.

- You're sorry?

- So am I, sir.

- I thought you were the enemy, sir.

- Well, I'm American, if that's what you mean.

- That'll be all, Joyce.

- Yes, sir. Sorry, sir.

- What can I do for you, sir?

- I was on my way to see Major Warden.

- Oh, yes, I'll Show you the way, sir.

- He should be finishing his lecture at any moment now, sir.

(EXPLOSION)

[...]