Oh, dear! It's not possible!
5 seconds sound clip from the The Black Cauldron movie soundboard.
You can hear this line at 01:13:04 in the Blu-ray version of the movie.
Quote context
[...]
- Now, come on, out with it! What is your offer?
- A magnificent sword for a warrior!
- I'm not a warrior. I'm a pig boy. What would I do with a sword?
- Yes?
- Oh, dear! It's not possible!
- Just as I thought, ladies! You've got no real power! Admit it! Admit it!
- Munchings and crunchings in here somewhere.
[...]