How is “as many as” used?

In Changeling (2008), one line is: “Sometimes as many as three.”

Which movie is “as many as” from?

The clip at the top of this page is from Changeling (2008).

Sometimes as many as three.

8 作品で登場 · 1 本目

イディオム

used to show surprise that the number of people or things involved is so large

34 本の映画に登場

as many as…
used to show surprise that the number of people or things involved is so large
There were as many as 200 people at the lecture.

定義：Oxford Advanced Learner's Dictionary 第 9 版