Random Film Idea

Drug use has been on a consistent incline for quite some time. Everything from nicotine and alcohol to cocaine and ecstasy to Prozac and Ambien. Throughout all races, ages, and socioeconomic status' drug use just seems to be up. Many people already live every moment of their life under the influence of very powerful drugs. It seems that along with use, drug strength is way up as well. Because evolution doesnt favor whats best it favors what survives and reproduces, human's tolerance to drugs has been steadily increasing in all this time between now (2010) and when this story takes place. This film opens many years into the future where humans have gotten to the point where they have self medicated themselves into oblivion. A radical group develops an injection that stops peoples bodies from being able to absorb drugs. Even if they continued to take them, they would no longer have an effect on anyone who had previously been injected. I'm thinking there should be huge free will questions in there too. The radical group should originally begin to be painted as heroes, but then seem less and less noble as more and more questions regarding free will expose themselves. I'm not quite sure yet if I want it to end with a revolution (either forced or voluntary) or the rebels eventually get crushed and human society crumbles.