I've just recently watched this documentary and I would like to take my hat off to its creator. The documentary's discussion on the history of money was solid-- it will really challenge your understanding of what and how money should be, and society's role and power in having a say in how it's created and regulated.
It gave a good intro and rationale for why we should have and use bitcoin (and the other crypto-currencies), although IMO it fell short in showing how bitcoin would really end money as we know it. (The story of how the Silk Road story 'tarnished' bitcoin's reputation should've been discussed extensively, as it shows some of the pitfalls of the 'budding' crypto-currency industry.)
Overall, still a good watch; I'd give it an 8/10 rating if this is IMDB.