This past Sunday, I saw Kumiko, the Treasure Hunter, a film about a Japanese woman who travels to Minnesota in search of the money that Carl buries in the film Fargo, because she believes that Fargo is, as its preface notes, a true story.
Two days later, on Fargo the television series, a young Stavros found the money that Carl buries in Fargo the film.
It's the year of people finding the money that Carl buries in Fargo!
Films in which a video cassette of an existing film is a plot element:
Kumiko, the Treasure Hunter (Fargo)
Dogtooth (Rocky IV and Jaws)
Son of Rambow (First Blood)