Look, if you're not a scientist or a geologist, it ultimately doesn't matter whether you believe that the ancient Book of Genesis is fact or fiction. You'll probably go your entire life unaffected ultimately by your belief on an ancient flood, or a deity creation myth, or anything in the Book of Genesis.
That being said, what struck me the most about this documentary was this wasn't made from facts, it was made from statements of belief.
"I believe...."
"I believe...."
etc. Through the ENTIRE documentary, over and over and over.
These are BELIEFS. That's all.
If you think this doc might answer the question "Is Genesis history?", unfortunately it was not and will not be answered.
Maybe one day we'll get the documentary that many have wanted "What parts of Genesis are based on fact?", but until then, we'll have to settle for pseudo-scientists and others waving their hands at the Grand Canyon and regurgitating quasi-scientific technobabble.
Noah's Flood is a much older story than the one that is included in the Bible. Flood myths stretch back thousands of years before the Bible. We even found one, in The Epic of Gilgamesh, virtually identical, except someone else building a boat, not "Noah".
So the "literal" flood is a retelling of a story that didn't even involve anyone named Noah.
The documentary didn't even notice this little fact, so what else did it leave out while talking endlessly about what they believe the Bible says? So a book that's been translated, not once, but three times into modern English. Ancient Hebrew to Ancient Greek to Latin to Vulgate Latin to English contains accurate history and nothing else?
OK...time to move on to another documentary...