Okay, here's the deal.
3 seconds sound clip from the The Emperor's New Groove movie soundboard.
You can hear this line at 00:41:36 in the Blu-ray version of the movie.
Quote context
[...]
- Now, stay with me. Stay with me.
- Stretch out your neck, and I'll grab the rope.
- How do I know you won't let me fall after you grab the rope?
- You're just gonna have to trust me!
- You know, it's a good thing you're not a big, fat guy, or this would be really difficult.
[...]