I don't think this is anything to joke about.
5 seconds sound clip from the The High and the Mighty (1954) movie soundboard.
You can hear this line at 01:16:22 in the DVD version of the movie.
Quote context
[...]
- Well, how are we gonna get hungry if we're only gonna be in the raft a few minutes?
- Aren't you giving us a lot of malarkey?
- 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.
[...]