You should think about releasing a series of short documentaries or films instead of a long format one.
Then you can concentrate on one individual or project at a time.
+1
Similar to how the BBC often puts together a long documentary as a series of shorter shows. Then you can do justice to parts that otherwise get passed over too quickly.
This is indeed a proposition worthwhile pondering on. My initial plan was to have a frame story of a common Bitcoiner that tries to succeed in his quest, which could be anything from mining to starting a Business or organising a conference, etc. I would follow him around with the camera and while his story is used to tell his tale, the watcher can identify with him, feel for him, while different aspects of Bitcoin would be focused on, like anonymity, monetary regulation, the Bitcoin community with its various projects, always leading back to him to connect the different fields. Everything would of course be real as this is a documentary. So the Bitcoiner's story has to be a true story as well.
Now with this proposition I see another approach to the movie. If I understand you correctly, you envision a short (30 min?) feature on lets say "mining", the next part of this larger Bitcoin series would be focused on "Silk Road" for example. This would of course result in a more thorough coverage of the topic(s) but would lack a narrative, which is the common Bitcoiner from my initial idea. It sounds more like a series for a pre educated audience, that already has a basic understanding of Bitcoin. My aspiration is to make movie, that gears towards a completely unexperienced audience to the common Bitcoin follower. I think by including the narrative structure of a main story one has more control over the arc of suspense and can create a more captivating movie. I am planning on making a 45 minute feature about Bitcoin. The topic maybe too dry/complicated to grasp for the inexperienced to keep them watching over the entire length. Therefore the element of a frame story (golden yarn) is neccessary in my opinion.
But why not making both? The two structures, the full length one for the casual viewer and an in-depth one for the eagerly interested could both be realized and use footage from one another. In the end of production of the 45 min. one, we will have hours and hours of material from many different areas, that could easily recombined to make shorter features of maybe 20-30 minute parts that will focus on specific aspects and give a clearer image. This is the beauty of this project, it could provide a repository for so many movies to come and everyone is invited to make their own.
Free to use, free to share and distribute!