The story about Satoshi cant be true if made in movie, his identity is highly concealed, cant be traced and no one wants to talk about it even from the forum that was said to found by him. Somehow I feel he is more than an individual and anonymous story was written by them. The documentary on the development of bitcoin will be more educative and efficient in promoting the space among newbies.
Well, I've never thought of the founder Satoshi Nakamoto as not being a single person. I feel more comfort in him being an individual than a group though, I believe he or she must have a co-developers in the bitcoin dream but then, the way they've been able to handle the secrecy behind this mysterious name @Satoshi Nakamoto and his person has been a thing of wonder that, the story behind the development of bitcoin would be far too fictitious on his person. Almost nothing is known.
Come to think of it, is the founder a male or female?
Anyway, a movie of this nature would advertise bitcoin to a far extent and would bring forth some certain truth and realisation of citizens of actions on truths about bitcoin but, it would be delay a lot as to its origin. Though, I think people would be a lot more interested in the movie.