(at around 5 mins) In the city of Marienbad before it floods, the boys throw rocks at a poster for "El Rostro de la Bestia," which has credits for Paul Naschy and Brian Yuzna. There is no such movie, but Yuzna did direct Naschy in Rottweiler (2004).
Javier Botet's film debut. Eventually he would develop a career specialized to play supernatural villains as ghosts, monsters, witches, demons, etc.
Fantastic Factory's ninth and last production after Faust: Love of the Damned (2000), Dagon (2001), Arachnid (2001), Darkness (2002), Beyond Re-Animator (2003), Romasanta (2004), Rottweiler (2004) and The Nun (2005). Fantastic Factory closed in 2005 after to fail in its attempt to create the first Spanish cinema company specialized in genre movies.