the Cockburns meet one guy in "American Casino" who understands the whole mess better than most, a California real estate investor named Jeff Greene who smelled the end of the housing bubble around 2006 and bet $1 billion against the mid-decade exuberance of Wall Street. Sitting in his walled and gated beach compound in Malibu, Greene calmly tells the camera that the opportunity for his successful hedge bet (which has yielded $500 million so far) involved massive pain for millions of homeowners.