How is “be at the bottom of” used?

In Gladiator (2000), one line is: “It will lie at the bottom of the ocean as if wounded.”

Which movie is “be at the bottom of” from?

The clip at the top of this page is from Gladiator (2000).

It will lie at the bottom of the ocean as if wounded.

7 作品で登場 · 1 本目

to be the original cause of sth, especially sth unpleasant

5 本の映画に登場

be / lie at the bottom of sth
to be the original cause of sth, especially sth unpleasant

定義：Oxford Advanced Learner's Dictionary 第 9 版