Willie was a nice giant, he was. He just got too big for his britches.
8 seconds sound clip from the Fun and Fancy Free movie soundboard.
You can hear this line at 01:10:44 in the Blu-ray version of the movie.
Quote context
[...]
- Simply thrilling. You're even better than the old-fashioned sleeping pill.
- What's the matter, Mortimer?
- Oh, the poor giant got killed, that he did.
- I don't like them sad endings.
- Oh, now, you don't understand.
- Willie was a nice giant, he was. He just got too big for his britches.
- No, don't touch me. I'll be all right.
- What I'm trying to explain is that Willie the giant didn't actually exist. No.
- He's a metaphysical phenomenon of your subconscious mind, a phantasmagoria of your mental faculties.
[...]