a briefly mentioned 'Rule of Story' on Tvtropes.
what movies does this work for?
Evil Dead; Essentially a cosmic horror story, in which a person unwittingly comes up against beings beyond his comprehension, and said beings then kill the people he loves. Ash is just bothered enough by this to take a chainsaw to them. Groovy indeed.
The Predator Series; Extraterristial, highly advanced creatures who are physically stronger than you, and hunt humans for sport? Most movies = running, hiding, character development. Predator movies = mostly killing *them* with improvised weapons and knives