'Goodnight Mommy' trivia and fun facts

240 twins were auditioned for the main roles.

The names of the children in the film are the same in real life.

Won the MÉliès D'argent & Critics Prize for best feature film and the José Luis Guarner Critics' Special Mention in Sitges 2014.

In the end, bottom line of credits says: "Shot on glorious 35mm".