Great idea and metaphor but one question

Rating: 8/10 (7 February 2012)

As stated in my summary, great idea and metaphor but one question... If time is currency and currency is mortality/lifespan and you get one year that starts dropping at age 25. wouldn't you either have to live off of another persons time who is over the 25 year mark, or be able to buy all you want... though if the later was the fact then that would make sense in the questioning of where the massive funds come from for the rich, otherwise wouldn't there have to be a lot of murders of people in the first bit of year 25? or can the government produce time, much like our funds, but that would make it worthless... The only reason our funds had reasonable value is because it was backed by gold, though that's gone and so our economy is dropping.Retrospect: how do the funds get into circulation in such high quantities?
Also... bad directing. when he asks for an hour and she refuses, they drive of... still nite and just over an hour left... next scene, day time and around 20 minuets left.