I should have been clearer there; I didn't mean that it was an adaptation of a PKD story, just that it followed the same process, of taking a mind-bending bit of SF and squeezing it into a standard Hollywood box.
In this case, at least they didn't claim to be "adapting" anyone's work, like what happened with I, Robot.
Limitless is a movie coming out this Friday which includes nootropics as a major plot device. I think that the way they are portrayed in the movie, and the subsequent media discussion (if any) about nootropics would be of interest here, even if the movie isn't.
From what I can tell, the movie is about a guy who uses a drug to improve his mental capabilities, uses those to radically alter his life, who is then targeted because its just that genre of movie.
Just a heads up, if anyone is interested.