How is “out of true” used?

In Searching (2018), one line is: “But as it turned out, it was true.”

Which movie is “out of true” from?

The clip at the top of this page is from Searching (2018).

Modismo

if an object is out of true, it is not straight or in the correct position

Se oye en 10 películas

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

But as it turned out, it was true.

En 8 películas · n.º 1