Submarine Movie Help Please.

I remember watching a submarine movie in which the crew was being hunted by ships at the surface which used sensitive microphone like tech to hear them. One scene involves the crew purposefully "singing" to grab the enemy's attention. Does anyone know the name of this film?

The Hunt For Red October?

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Unfortunately no. I think it is older than THFRD.

I remember the people in the ships could literally hear and make out what they were singing. The sub wanted them to hear it though for some reason .

Maybe "Run Silent, Run Deep" (1958)?

U-571?
Crimson Tide?

It's "Down periscope"

If they were doing whale noises and or singing Louie Louie then it is Down Periscope.

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Sounds like 'The Enemy Below'

http://www.imdb.com/title/tt0050356/?ref_=fn_al_tt_1

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“The Universe is under no obligation to make sense to you.”
― Neil deGrasse Tyson

Lol the only thing that I can think of that would have people singing in a submarine would be the trippy beatles movie Yellow Submarine.

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Through the darkness of future past
The magician longs to see
One chants out between two worlds:
Fire walk with me.

It was the enemy below. Thanks guys

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