'Goodnight Mommy' trivia and fun facts

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".

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

240 twins were auditioned for the main roles.