In Oxford Advanced Learner's Dictionary, the first definition of the word dialogue is as follows.
conversations in a book, play, or film/movie
In that specific dictionary, the phrase, a book, play, or film/movie is used a lot to describe many words' definitions.
As it seems that a book, play, or film/movie all share some quality in their nature, I've thought that the phrase can be substituted by other expressions.
What I came up with are as follows.
- conversations in art
- conversations in a piece of art or literature
- conversations in a produced content with imaginary characters in it
I would like to ask you how correct those are and ask for your guides.