You may not have read any of Philip K. Dick's fiction but chances are pretty good that you've seen at least one film based on his work. Maybe "Blade Runner" or the new sequel, "Blade Runner 2049"? How about "Total Recall" or "The Adjustment Bureau"? David Gill's seen them all. Gill is a Philip K. Dick scholar who also runs a website called "Total Dick-Head." Here's Gill with his thoughts on Hollywood's adaptations of Dick's work.