EcoWatch: As you know California is going through a historic unprecedented dry spell and Im talking about original movie ideas. Boom!, says Stewart, poking fun at Hollywood and the highly anticipated release of yet another Jurassic movie next month. Then, Stewart gets serious. No, I am talking about the catastrophic four-year drought. Californias reservoirs are empty, snowpack is gone, what little water remains is controlled by a ruthless, disfigured warlord, doling out precious moisture from his mountain...