Sci-fi horror is arguably one of my favorite genres, if not definitely my absolute favorite. And the Stone Cold Steve Austin of sci-fi horror franchises is easily the Alien series. (Now that I’ve made this analogy, all I want to see is a xenomorph with a goatee driving a zamboni into Madison Square Garden while wearing a bandoleer of Natural Light.) But when you think about it, that actually isn’t saying much. I can come up with dozens of individual films in the genre that are absolute classics (The Thing, Event Horizon, Scanners, The Fly), but …