Millennium Actress (2001)
Similarity of moonbase design
The story of a filmmaker who recounts his life through his memoirs and movies, which is similar to the story of Chiyoko
One character in one of the films appears just like the main character of Yojimbo
One of the movies within this movie is an homage, including the blood stained wooden walls, the elderly demon woman and Chiyoko's character's appearance.
The movie poster is visible
has the movie poster for Sennen joyu (2001) in this movie.
Genya speaks to his cameraman, that the documentary that they're making is going to be called "The Seven Ghosts" and appears a poster at the background similar to Akira Kurosawa's film while Genya makes a funny imitation of the Samurai Kambei
Chiyoko appears in a film quite similar, but is a giant robotic lizard