Gaffes

While the movie has a fun nod to a future project, as of 2020 the film "The Mangled" has yet to be made.

The film mistakenly states that Del Toro directed the Hobbit movies.

In the hot tub scene, an actress says, "that is Harper's line. Harper is a character in the film and not an actress with a line. On top of that, in the film within a film, Harper is not an actress in the film, so she would not have a line.