Rob McCallum has also written another blog on the progression of the documentary, you can read it here.

The cuts for Origins and Evolutions, as of this writing now sit at 90 minutes and 88 minutes respectively – which is even longer than I thought, but right in so many ways. In addition to this cut, we’ve also found a way to create the shorter cut for the general fan that uses Origins and Evolutions as the basis but strips away a lot of commentary, a lot of archived footage, but tells their inspiring story in a current run time of 107 minutes.