How is “trick or treat” used?

In The Little Girl Who Lives Down the Lane (1976), one line is: “and shout, "Trick or treat!"”

Which movie is “trick or treat” from?

The clip at the top of this page is from The Little Girl Who Lives Down the Lane (1976).

and shout, "Trick or treat!"

8 作品で登場 · 1 本目

said by children who visit people's houses at Halloween and threaten to play tricks on people who do not give them sweets / candy

15 本の映画に登場

オックスフォード映画の 100%
said by children who visit people's houses at Halloween and threaten to play tricks on people who do not give them sweets / candy
and shout, "Trick or treat!"
Trick or treat!

定義：Oxford Advanced Learner's Dictionary 第 9 版