Wow
I used to think Stein was a very smart individual but this movie proved me wrong.
The answer to 'how life began in the first place' has been answered by the evolutionary theory very nicely.
"In 1953, Stanley Miller and Harold Urey demonstrated that many simple biomolecules could be formed spontaneously from inorganic precursor compounds under laboratory conditions designed to mimic those found on Earth before the evolution of life. Of particular interest was the substantial yield of amino acids obtained, since amino acids are the building blocks for proteins.
In 1957, Sidney Fox demonstrated that dry mixtures of amino acids could be encouraged to polymerize upon exposure to moderate heat. When the resulting polypeptides, or proteinoids, were dissolved in hot water and the solution allowed to cool, they formed small spherical shells about 2 μm in diameter—microspheres. Under appropriate conditions, microspheres will bud new spheres at their surfaces."
In fact, a simple wikipedia search shows many very good theories of how life began in the first place 'without an intelligent designer'.
http://en.wikipedia.org/wiki/Abiogenesis
As a medical student, this movie really bothers me because it is a giant step backward in the uncovering and understanding of truth.