It's my fault, sir.
1 seconds sound clip from the The Bridge on the River Kwai movie soundboard.
You can hear this line at 01:56:36.789 in the Blu-ray version of the movie.
Quote context
[...]
- I could have done it. I was ready.
- No, it's superficial. Maybe a chipped bone, but there's nothing broken.
- I can walk on it. That's all that counts at the moment.
- Yeah, but how far and how fast?
- We won't know that till I've tried it, will we?
- What are you doing? I didn't give orders for a halt.
- We're still five hours' fast march from the objective. Maybe six. Come on.
[...]