- Like a martini?
- That's very kind of you, but, no, I think not. Mind if I have one?
- No.

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

You can hear this line at 01:16:42.566 in the Blu-ray version of the movie.

Quote context

[...]

- How's that, commander?

- Oh. Don't call me commander. It's unromantic.

- Now, look, you're an officer yourself. How would you like it if I called you Lieutenant Lover? Let's be democratic. Just call me sir.

- Yes, sir.

- Huh. Brass ahoy. He wants to see you, and he's all yours. I'm going for a swim.

- Don't leave me!

- Commander Shears?

- Yes.

- My name's Warden.

- How do you do?

- I'm sorry to intrude on you like this...

- Oh, that's okay, major. I'm used to it by now.

- Like a martini?

- That's very kind of you, but, no, I think not. Mind if I have one?

- No.

- How did you manage to get that?

- Well, this is a hospital, major, and where there's a hospital, there's alcohol.

- Oh, yes, of course. Heh. Jolly good.

- Well, look, I'll be as brief as possible. I belong to a rather rum group called Force 316.

- Our headquarters is up in the Botanical Gardens.

- Protecting rare plants from the enemy?

- Heh. Not quite.

- Sure you won't have one?

- No, thanks very much.

[...]