Thanks for your comment, u mentioned good things i didnt know when i writed my comment...like the "changeling ritual" its exactly what they describe here for me..

i personnaly believe that their god(s) or the "demiurge" u speak about, or at least his servant are some kind of reptilians, the movie here is filled by reptile reference too..see my comment i just made of my interpretation of the movie and tell me what u think