That would really be a show. Can we get there in time, sir?

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

You can hear this line at 01:46:34.129 in the Blu-ray version of the movie.

Quote context

[...]

- One, original bridge works reported abandoned. New construction downstream from first site.

- Two, enemy intends to open railway with passage of special train Bangkok for Rangoon with troops and VIP. Estimated to arrive target, a.m. 13th.

- Three, you should synchronise demolition with passage of train.

- Four, good hunting. Have fun. That's all, sir.

- A train and a bridge, that would be something.

- That would really be a show. Can we get there in time, sir?

- Yai says we're two to three days' march from the Kwai.

- If we set a faster pace, we could make it before sundown on the 12th.

- It's worth having a go for the train, don't you think?

- Oh, by all means.

- Good hunting. Good show. Jolly good fun. Jolly, jolly good.

[...]