Developing a Documentary Script

I've started writing and staging the tale of Captain Moonlite. My biggest problem is condensing the whole story down, getting all the facts in while also creating a portrait of ||Moonlite's character. He was complex, part hero, part absolute villain which would be good to convey.

I sent my first script draft to my team and received positive feedback, but a couple of notes warning me about seeming biased, as well as the pacing which needs work.

I've bought Paul Terry's book "In Search of Captain Moonlite", which is an incredibly detailed and informative source by a respected author. It will inform the dates, times, locations and personality of the titular character in our film.