I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har.
12 seconds sound clip from the The Last Unicorn movie soundboard.
You can hear this line at 01:04:00.542 in the Blu-ray version of the movie.
Quote context
[...]
- Avast! Hark ye closely, mum.
- When the wine drinks itself, when the skull speaks, when the clock strikes the right time.
- Only then will you find the tunnel that leads to the Red Bull's lair, har har.
- There be a trick to it, of course.
- Why won't you help me? Why must you always speak in riddles?
- Molly, he knows. King Haggard knows what Lady Amalthea is, I'm sure of it.
[...]