You don't realise what a plum you are for us. Your knowledge of the area, your making friends in that village.
6 seconds sound clip from the The Bridge on the River Kwai movie soundboard.
You can hear this line at 01:36:33.839 in the Blu-ray version of the movie.
Quote context
[...]
- Blast. This is awkward. Silly, it never occurred to me.
- Well, in that case, maybe...
- Yes, he's right. We'd better arrange some practice jumps for him immediately.
- I'll pop over and check with Freddie right away.
- All right, Chapman, you can run along.
- Well, then, feel like a sniff of air?
- It's almost as if your whole escape had been planned with us in mind.
- By the way, here's something that'll interest you. The new L pill.
- L pill?
- L for lethal. Instantaneous, painless. Much better than the old ones. For capture, of course.
- In other words, you're telling me not to be taken alive.
- You see, if any of you get hurt or wounded on the trek, the others will have to leave them behind.
[...]