Warner Independent Pictures has completed production on Richard Linklater's adaptation of Philip K. Dick's landmark science fiction novel, A Scanner Darkly. Starring Keanu Reeves, Robert Downey Jr., Winona Ryder, Woody Harrelson and Rory Cochrane, the story is set in a world where the war on drugs has been lost and Reeve plays undercover police agent Fred. In the novel, the drug of the day is Substance D which causes users to develop split personalities. While undercover, Fred gets hooked and becomes drug dealer Bob Arctor. Fred is then assigned to, in effect, investigate himself.