Part of the footage was lost during the post-production because of an error of the edition.
The production of the film delayed from time to time because of the leave of some of the actors and finished after four years.
The actress Sandra Diéguez, who played the character of Elena, had to play also the role of Elena Leonar when she left the project in the second year of production.
The black-and-white still photograph style came from the inspiration given by "La Jéete", directed by Chris Marker, who is mentioned in the credits.
There are many literal references to another films like "Abre los Ojos", "La Jéete", "Ghost in the Shell", "Harmagedon", "2.001: A Space Odissey" and "Blade Runner", showing footage of them along the film.
Contribute to this page
Suggest an edit or add missing content
