This is the 13264th most frequent Polish word.
opowiedziany
"Opowiedziany" means "told" or "narrated" in English.
Here, "opowiedziany" is used as a past participle to describe the joke that was told, emphasizing the action performed by the implied subject.
Opowiedziany przez niego dowcip rozbawił wszystkich.
The joke told by him made everyone laugh.
In this instance, "opowiedziany" functions to modify the film, describing how the film's story was conveyed, indicating storytelling.
Film opowiedziany z perspektywy dziecka poruszył widzów.
The film narrated from the perspective of a child moved the viewers.
"Opowiedziana" here refers to the story, indicating that it was told, emphasizing a past action that has lasting importance.