This is the 408th most frequent Persian word.
ساخته
Made; built; fabricated.
In this sentence, "ساخته" is the past participle of the verb "ساختن" (to construct), showing the result of the action - something that has been constructed.
این خانه با مصالح محلی ساخته شده است.
This house is built with local materials.
Here, "ساختهاند" incorporates "ساخته" and denotes an action completed recently, indicating the movie creation.
فیلم جدیدی ساختهاند که داستان جالبی دارد.
They have made a new movie that has an interesting story.
In this usage, "ساخته" serves as a noun form, indicating something created or invented, here being a mental construct.