And, Doctor, I hope you won't say anything to Joyce.

4 seconds sound clip from the When Worlds Collide (1951) movie soundboard.

You can hear this line at 00:56:48.304 in the Blu-ray version of the movie.

Quote context

[...]

- The drawing is over. You can't open a new one or issue new numbers without starting a revolution among the lucky winners.

- It's about time I donated something to this setup.

- I won't be needed. I never have been.

- Anyhow, I didn't give up much by not drawing. What's one chance in 600?

- Leaving me will save fuel. Let it stay that way.

- And, Doctor, I hope you won't say anything to Joyce.

- Good night.

- Attention, everyone. Bellus growing larger, getting closer every hour. And with every hour, the time left to us gets shorter, so hurry.

- More welders are needed by number three construction crew. Please rush.

- Less than seven days left. We're falling behind schedule.

[...]