Much as a train looms up in the distance, in an instant, it is upon you.
4 seconds sound clip from the When Worlds Collide (1951) movie soundboard.
You can hear this line at 00:21:48.360 in the Blu-ray version of the movie.
Quote context
[...]
- You are proposing that we all pack our trunks and move to... Zyra?
- No, sir. But we are hoping that, with God's help and guidance, a few people may do exactly that.
- A 20th-century Noah's ark, huh?
- Yes, one or more of them, as many as can be built in this short time.
- Eventually, as Zyra and Bellus speed closer toward us, even a layman will be able to see the danger.
- Much as a train looms up in the distance, in an instant, it is upon you.
- If you wait until the danger is visible to the naked eye, it will be too late to escape.
- Bellus and Zyra will be upon us and crush the Earth.
- Dr. Ottinger, of the Estabrook Observatory.
[...]