How is “a fighting chance” used?

In Godzilla: King of the Monsters (2019), one line is: “And at least now she will have a fighting chance”

Which movie is “a fighting chance” from?

The clip at the top of this page is from Godzilla: King of the Monsters (2019).

And at least now she will have a fighting chance

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a small chance of being successful if a great effort is made

5 本の映画に登場

オックスフォード映画の 100%
a small chance of being successful if a great effort is made
And at least now she will have a fighting chance
We do that, we got a fighting chance at their flanks.

定義：Oxford Advanced Learner's Dictionary 第 9 版