You will finish the bridge by the 12th day of May.

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

You can hear this line at 00:21:27.485 in the Blu-ray version of the movie.

Quote context

[...]

- Are you with me there, commander?

- Well, I, uh... I hope they can remain soldiers, colonel. As for me, I'm just a slave. A living slave.

- Queer bird. Even for an Ameri... Mm. He's been in isolation too long, poor chap.

- Cut off from his unit. It should be a lesson to all of us.

- English prisoners! Notice I do not say English soldiers. From the moment you surrendered, you ceased to be soldiers.

- You will finish the bridge by the 12th day of May.

- You will work under the direction of a Japanese engineer Lieutenant Miura.

- Time is short. All men will work.

- Your officers will work beside you. This is only just for it is they who betrayed you by surrender.

- Your shame is their dishonour. It is they who told you better to live like a coolie than die like a hero.

[...]