Between the Predators' dripping their glow-in-the-dark green blood and the Aliens' getting their rubber cement mucous all over everything, this is certainly a very sticky movie, though not, ultimately, a very frightening or commanding one.

Surprisingly free of gore, unlike its predecessors.

A reductive spook show in which a bunch of puny humans get chased around by scary monsters.

The thing-a-ma-jigs have it out with the whatch-a-ma-call-its -- as several humans scurry and scream between -- in Alien Vs. Predator, the kind of two-for-one dogfight (last repped by "Freddy Vs. Jason") that usually does more to bury a franchise than revive it.

The fifth outing for the slime-dripping, shape-changing creatures, the Aliens are looking a little dogged, perhaps ready for the Alien Retirement Home. Meanwhile, the Predator warriors, who never achieved the artistic heights of their counterpart, look better invisible. When visible, they resemble robotic can openers gone berserk.