Linklater used the interpolated rotoscoping process (an advanced animation process) to bring "A Scanner Darkly" to the big screen. Basically live action photography was overlaid with the animation. Linklater first used the technology in his 2001 film "Waking Life."
In a press release issued by Warner Independent Pictures Linklater stated, "There is a unique power to Scanner, as there is to all of this authors outstanding works. I was compelled to pursue my dream of getting this novel turned into a movie, no matter how long it took.
Mark Gill, President of Warner Independent, added, "Five years ago, Philip K. Dick's vision of the future seemed at the very least a bit fanciful or paranoid, but now it seems like a highly plausible possibility. That topicality, combined with a stellar group of actors, blue chip producers and a director at the top of his career--introducing us to a new look at the art form of film--make 'A Scanner Darkly' irresistible."
Dick's daughters Laura Leslie and Isa Hackett said, "We are thrilled to have the opportunity to partner with this amazing team of filmmakers in what should be the first faithful film adaptation of our father's work. 'A Scanner Darkly is particularly close to our hearts because of its autobiographical elements, and we will continue to contribute to this project in any meaningful way that we can."
The Official Synopis of "A Scanner Darkly"
"A Scanner Darkly" is set in suburban Orange County, California in a future where America has lost the war on drugs. When one reluctant undercover cop (Reeves) is ordered to start spying on his friends, he is launched on a paranoid journey into the absurd, where identities and loyalties are impossible to decode. It is a cautionary tale of drug use based on Dicks own experiences.
Source: Warner Independent Pictures

