How is “quite some” used?

In Come from Away (2021), one line is: “as some planes may still be here for quite some time.”

Which movie is “quite some” from?

The clip at the top of this page is from Come from Away (2021).

as some planes may still be here for quite some time.

8 作品で登場 · 1 本目

a large amount of sth

20 本の映画に登場

定義：Oxford Advanced Learner's Dictionary 第 9 版