Originally Posted by VicAjax
and notice that any movie made from a Philip K. Dick story bears almost no resemblance to whatever Dick wrote. even Blade Runner, which was a fine sci-fi movie, doesn't really have all that much in common with Do Androids Dream of Electric Sheep?
That one is a tough one. I mean, not everything is easily translated from book to screen. At the time, PKD said that the script writers had actually found better ways of resolving some problems than he had.
On the other hand, i think replicants are better developed in the book. In the book, they may not even know they're not human, and what's dangerous about them isn't strictly some form of malice, but their inability to grasp the concept of empathy and their tendency to make several snap decisions in the tinyest fraction of a second, often resulting in the death of anyone around them. It's not that they bear ill will toward you, it's that they don't understand why killing you would be wrong, and they can kill you sixteen times before you hit the floor.
In the book, the replicants just want to be free, and a group of them have programed themselves to believe themselves to be human. But that's not dynamic enough of a story for the big screen, so in the film they are fighting to have their lives extended.
And isidore makes a little more sense as a socially crippled savant than as an idiot truck driver.
In short, if you want to criticize PKD-based films, start with something like "Minority Report". Blade Runner was the least of their sins.