VIDEO ESSAY: Ridley Scott's PROMETHEUS Timeline : Scott seems to have created a “peripheral prequel” to his historic sci-fi horror film Alien. There are no direct character lineages (outside of Weyland Industries) or same alien threats (presumably). The important difference between Alien and Prometheus seems to come down to Scott’s polarizing themes. With Alien, Scott set out to rewrite the space opera (e.g. Star Wars, Star Trek) into a terrifying gore fest. Judging from the ideas and content in the Prometheus viral videos (the origins of life, man’s ambition to play God), Scott now looks to expound on the hazards of ambition and hubris.