In this independent (and unofficial) documentary from the Ala Secreta channel, Aline Lauxen dives deep into the creation of one of the greatest horror monsters of all time: the xenomorph, going through all the movies and major productions to understand how it still is a sci-fi icon 47 years after its gruesome birth. 'Xenomorfo: The Biomechanical Nightmare' is a must-see for die-hard fans of the Alien franchise.