This HBO documentary takes a look into the beliefs of creationists and biblical literalists to understand why they so vehemently oppose evolution and Darwinism. That’s one half of the documentary.
The other half looks into the life and beliefs of Charles Darwin, and how so often he is misunderstood.
I would’ve liked if they could have interviewed Christians who embraced evolution or had no problems believing in the comparability of evolution (by natural selection) and Christianity, but they may be in the minority or not as vocal as creationists and evolutionary atheists.
This is a huge topic within American culture, society, and religion that gets really heated at times.