The ending: book vs. film (SPOILERS!!)
Okay, assuming you noticed the SPOILERS -warning on the title, I won't be hiding any of my text in this post.
Now.
I got my hands on the book, and it's a fine read. Superior to the movie.
Now!
About the endings of the novel and the movie.
The novel ends with the Wolfen attacking Wilson and Neff in a skyscraper office, and the two officers manage to shoot several of the beasts. More cops arrive on the scene, and the surviving Wolfen flee. With the carcasses of the slain pack members the humans now have irrefutable proof of the Wolfen's existence, and the animals will be exterminated. The Wolfen acknowledge this, and let out a defiant howl, not intending to go out without a fight.
The movie ends with Wilson smashing the model of the development project. The Wolfen are satisfied that their hunting grounds are not being threatened, and run back home. They will continue to eat people, and Wilson and Neff will do diddly-squat about it.
As a horror movie, the film is okay. As an adaptation of the novel, it is truly lackluster, and the ending exemplifies this. In the book, the Wolfen are portrayed quite sympathetically: they are not evil monsters, but thinking and feeling beings. They don't hunt humans out of malice or cruelty, but simply out of desperation. Unlike the unstoppable and invincible beasts of the film, they are fully aware of their vulnerabilities in face of humans' technology, and use their cunning and their senses to tip the scales. They know humans are a lethal enemy, and do everything in their power to avoid detection. The killing of two police officers by two rash juveniles of the pack sets the events in motion.
In fact, both sides of the book are in a race against time: Wilson and Neff attempt to discover the nature of the Wolfen before they're killed, and the Wolfen attempt to stop them before they're exposed to the world, and the hunters will become the hunted. After all, for countless millennia wolves, lions, leopards and tigers regarded humans and our ancestors as simply meals on two legs. Then we developed weapons, and look what happened.
There is a sense of tragedy and sympathy about the Wolfen, but at the same time they ARE killing people, and we have as much a right to protect our species as the Wolfen have to survive. A bum or a drug addict has the same right to live as anyone else. The Wolfen might not agree, but their opinion wasn't asked.
And this, to me, is the biggest stumbling block of the movie's ending. Wilson and Neff are police officers, sworn to protect humanity. Yet in the end they let the Wolfen go about their business of killing people. Now, if the beasts were to return to the wilderness, I would (remotely) understand the cops' reaction.
But they don't. They will continue to prey on people, and Wilson and Neff are down with that. Police officers!
I get the whole "survival of the fittest" -analogy, but that's nature, not the human society, and if some outside force tries to impose those values on us, we should combat it.
I'm fully aware, thank you very much, that many politicians, businessmen and other people enforce the Darwinian principle, but even they occasionally get busted and punished.