‘The Money Masters’ is an excellent film produced by Patrick Carmack and directed/narrated by Bill Still, and released sometime around 2004 as ‘The Money Masters’, but repackaged and released in 2009 by Still as ‘The Secret Of Oz’ – this is the repackaged version.
It covers fractional-reserve banking, the Federal Reserve, central banking, the bond market and many other related subjects and attempts to explain why this monetary system is problematic and fundamentally flawed.
The main premise (generalised somewhat) is that the financial system has been designed and set up to reap the spoils of the many for the benefit of the few.
In this repackaged version the new premise is that ‘The Wonderful Wizard Of Oz’ by L. Frank Baum has many parallels with the financial system and perhaps the prevalence of what could be construed as hidden symbolism within the original story was a surreptitious way of ‘getting the message out’ to the people about the need for monetary reform, without Baum endangering himself in the process.
You can find quite a lot more background information about the two versions of the film here at the Wikipedia link.