A Movie Review: Elysium

Elysium. A movie that has a nice set-up, but essentially falls flat.  The wealthy have abandoned earth.  The rest of humanity is left in poverty on earth.  Yes, an interesting concept, but if falls apart in my mind in two ways.  First, too many over-the-top characters.  You have a serious concept story, but characters that are more appropriate to Arnold Schwarzenegger's Total Recall.  Second, why exactly would a computer program put power into the hands of one person?  If you just killed that person, who would be in power?