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...

- Palazzo di giustizia.

- The palace of justice right across the bridge from where you are. They'll give you all the help you need.

- Start blasting it, Bob.

- We're moving up with another unit over on the other section of the Tiber.

- Yes, sir.

- It's gotta be down there someplace. Keep blasting.

- Calder talking.

- Anything there, Bob? No, general. We don't spot it here.

- Nothing here either.

- 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.

[...]