@Night Jaguar
Someone forgot to tell Mikey-boy here that the new Sci-Fi film "In Time" is not a documentary.
But an intriguing scenario though; a sort of reverse-"Logan's Run", in which people have become ageless, and have to work to earn more time; in effect, time is literally money. One man becomes the wealthiest person in the universe, and is pursued by the authorities who want him to be their unlimited longevity credit line.
A question, though: Did "In Time" start production before that of the latest series of "Torchwood": 'Miracle Day', or the other way round? Either way, fundies such as Mikey-boy here, with their pseudo-science to explain pre-Fall Creationism, post-Kitzmiller vs. Dover, will realise that such is the least of their problems. When there's Sci-Fi scenarios (and, post-"Matrix", with films such as "Inception", "Source Code" etc, you know that Hollywood will jump on this particular story bandwagon) that explore the notion of eternal life without 'Spiritual Salvation'.
But of course, such has been explored in previous kinds of Sci-Fi: "RoboCop". "Ghost in the Shell".
How does the concept of immortality (Murphy/RoboCop & Cain/RoboCop II; Major Motoko Kusanagi respectively) via cybernetics - biomechanics - grab ya, Mikey-boy? Advances in medical science*, and all that jazz...! >:D
...oh, and 'Tree of Life organ'? So why aren't you a follower of Odin; Norse mythology has Yggdrasil**. Or even the various deities in Mayan mythology, with it's 'World Tree' eh, Mikey-boy? [/smartarse]
*- And that's before we even mention nanotechnology, re. Adam Warren's comic adaptations of the "Dirty Pair", and in Sci-Fi anime such as "Kiddy Grade". Imagine virus-sized robots in the body, programmed to eliminate all those nasty DNA-damaging & age-inducing 'Free Radicals', and even performing plastic surgery at the cellular level...?!
**- Or even 'Kami-sama'; Yggdrasil in the manga/anime "Ah! My Goddess" by Kosuke Fujishima, is a vast cosmic hypercomputer that controls reality.