It's gotta be down there someplace. Keep blasting.
2 seconds sound clip from the 20 Million Miles to Earth (1957) movie soundboard.
You can hear this line at 01:13:01.445 in the Blu-ray version of the movie.
Quote context
[...]
- It disappeared into the Tiber, general, at Ponte Umberto.
- What do you think? Would hand grenades force it out?
- I don't know. I can't tell what that thing will do or where it'll do it. It's worth a try, sir.
- There's an artillery unit deployed at, uh...
- We're moving up with another unit over on the other section of the Tiber.
- It's gotta be down there someplace. Keep blasting.
- Anything there, Bob? No, general. We don't spot it here.
- We've blasted the Tiber straight through the city for hours now. Got any ideas?
- Hello? Bob. Can you hear me?
- Do you hear me, Bob? Come in, Bob.
[...]