How is “be to your advantage” used?

In American Movie (1999), one line is: “I decided to use it to my advantage...”

Which movie is “be to your advantage” from?

The clip at the top of this page is from American Movie (1999).

I decided to use it to my advantage...

5 作品で登場 · 1 本目

to give you an advantage; to change a situation in a way that gives you an advantage

11 本の映画に登場

オックスフォード映画の 100%
to give you an advantage; to change a situation in a way that gives you an advantage
My letter says, "it will be to your advantage to be present on this date.

定義：Oxford Advanced Learner's Dictionary 第 9 版