When you get in that raft, you might even try singing.
5 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 01:16:27 in the DVD version of the movie.
Quote context
[...]
- No doubt there'll be caviar. It would be most arduous if there were no caviar.
- I'll speak to the emergency chef.
- I don't think this is anything to joke about.
- You're wrong! The more jokes, the better.
- When you get in that raft, you might even try singing.
- Well, I was once a fair-to-middling bass.
- I can't carry a tune in a basket, but I'm sure loud.
- Now, this is very important.
- When we actually go in, there will be two shocks.
- If you know about them in advance, they won't frighten you.
[...]