Nah, if you want a scray movie that breaks the rules with the worst ending of any modern movie made, check out "The Mist". The ending to that movie is just wrong.
I haven't seen "The Mist" I might have to check it out.
What I meant by breaking rules is stuff like little kids getting killed, and mothers in labor being killed and all that. Some of the more "taboo" things in cinema.
I didn't mention the "evolution" of the Alien was interesting. They alluded to it before in 3 with the alien coming from the dog and being "different" as Ripley put it in the movie. They alluded to the alien takes on some traits of the host that births it, and that's an interesting premise. Alson in 4 with the genetically engineered queen. Imagine all manner of creatures on earth spawning different iterations of the alien? Lions, Manatees, Horses, Gorillas... that would be some sight.