A good movie that I think will let you get great information and documentaries on how Blockchain works are titled Trust Machine: The Story of Blockchain that was a film of 2018 last year, And I think documentaries like these are really helpful for people who want to understand a little something about the technology,

Here are some videos from youtube that I think will be helpful in some newbies that don't have knowledge about it, You can search the youtube for more juicy information.

https://www.youtube.com/watch?v=baJYhYsHkLM
https://www.youtube.com/watch?v=SSo_EIwHSd4
https://www.youtube.com/watch?v=jKYhLpHJv8U

If you like to read there are tons of book about blockchain you can read about, I think gaining more knowledge even if you already know a lot in this technology and platform will sure be great equipment for you in the future.