Topics like these are of utmost significance. True, the existence of God cannot be absolutely proven. There are proofs, but not absolute proofs. If there were absolute proofs, what room would there be for faith?
However, documentaries like these show how far reasonable it is to believe that God exists instead of unbelief. It presents more proofs for the existence of God in the present-day discoveries of modern science, thus increasing the number of evidences for the case of belief that has far outnumbered the number of evidences for the opposite.
Shalom.