Unlike most of those archeological findings or documentaries on events that did shape our world, there usually is an eye witness or documents that supports certain claims and points to certain narratives to not make a documentary be solely on fictions. Documentaries ought to come with a great degree of truth but in the case of Bitcoin, you can’t have that since Satoshi Nakamoto or someone on the team wouldn’t come out to make certain claims about Bitcoin.
Except you are okay with CW and I don’t HBO would want to waste good money on gigs from a clown.
Although old types of documentaries use facts on ground but films such as that of Money Electric by HBO have no choice but to make guesses, including often proven wrong story that film was made by coder named Peter Todd. You are correct that giant channels do not put up with fake people such as Craig Wright, who has already been legally shown not to be Satoshi, but even serious filmmakers find it hard because they do not have clear proof such as account of coins moving on ledger.
Although I do agree that these movies are made up, they are based on real emails and notes. It is just that directors are coming to unproven answers. I believe that any filmmaker who says that he/she discovered Satoshi is just seeking title because hidden name of maker is what makes Bitcoin so new and different.
Knowing bitcoin is not under the control of even its own creator, not to talk of anyon else is what makes bitcoin a unique kind of invention, and with the way it came and gained acceptance and adoption within the first group of supporters, which eventually began growing until a community of supports was formed, and the growth didn't also stop there, but new people continued to joined as investors and supporting causing the value of bitcoin to rise significantly is why the government later found bitcoin hard to ignore even after several bans here and there..
I bet if Satoshi was to be known, by now, he would certainly be in prison and the government would have forced him to handover bitcoins code to them so that even if bitcoin continue to exist, it will be under their control, they can monitor wallets, keep track and control what comes in and what goes out, and also be able to freeze wallets too..
And like I said before, I see as impossible to make a bitcoin creation film that won't involve some made up stories just to make the movie fun and interesting to watch, in the end, what we see will not be the true facts on how bitcoin was created but some cooked sh*t.