There is but one inch of clearance between the roof of this rattler and the roof of Flat Top Tunnel. Savvy?
11 seconds sound clip from the The Polar Express movie soundboard.
You can hear this line at 00:29:22 in the Blu-ray version of the movie.
Quote context
[...]
- Come on, kid. Flip my shoulders. Grab my lily.
- That skirt you're chasing must have moved on ahead.
- We gotta hightail it to the hog, pronto.
- The engine. The engine, you tenderfoot.
- We gotta make the engine before we hit Flat Top Tunnel.
- It's just the run up to the hump, kid.
- Get back on, kid. Hurry! Grab my muck stick.
- There's only one trick to this, kid. When I say jump, you jump!
- You? I thought you got thrown off, and... You're driving the train?
[...]