Metareference is a concept in literature and art where a work refers to itself or its own creation process. This can be seen in movies, books, or paintings that acknowledge their own fictional nature. For example, a character in a film might comment on the fact that they are in a movie, breaking the fourth wall and inviting the audience to reflect on the storytelling. This technique often adds depth and humor, allowing creators to play with audience expectations. It can also encourage viewers to think critically about the nature of reality and fiction, as seen in works by David Foster Wallace or Woody Allen.