metafictional

/ˌmɛtəˈfɪkʃənəl/
adjective
  1. Relating to or characteristic of metafiction; self-aware about being a work of fiction.
    • Her writing style is highly metafictional, with footnotes that argue with the main story.
    • The movie has a metafictional twist when the characters realize they are in a film.
    • Critics praised the play for its metafictional humor, as the actors sometimes stepped out of character to address the audience.