I saw a test screening of this movie at Arizona State University, and it's possible there may be slight changes before the official release. However there is little or nothing I would want to see changed. It's a very well put together movie, fast paced and engrossing. When it was over, I was very surprised that 90 minutes had elapsed - it seemed like less than an hour.
From a brief description, it might sound very boring - Dawkins and Krauss criss-crossing the world, giving speeches at atheist conferences, debating religious apologists and so on. But the film is very well edited and has a very fast-paced feel, as well as capturing human moments like Richard Dawkins nodding off to sleep on a train, or sitting in a hotel room holding a phone to his ear, frustratedly trying to get a word in edgewise as an unseen person on the other end lectures him on morality.
Most of all, this film captures the passion and intensity of two men at the top of their respective scientific fields, who are awed by the beauty and complexity of nature and have an almost messianic zeal to share that beauty and awe - so much more satisfying and inspiring in my opinion than the petty just-so stories of religion - with the general public.
You also get the sense that atheism is a movement whose time has finally come. Even in religion-saturated America, more and more people are coming out of the closet and connecting with each other, turning up at atheism conferences in large numbers though so far ignored by the media.
But this is not as much of a religion-bashing film as you might expect. It's basically an intimate portrait of two friends with a shared passion for knowledge, who are driven to share that knowledge with the world. As such, any viewer can enjoy this movie.
