The Brotherhood of the Bell is a 1970 made-for-television movie produced by Cinema Center 100 Productions and starring Glenn Ford. The director Paul Wendkos was nominated in 1971 by the Directors Guild of America for outstanding directorial achievement in television.
The film relates how a successful Economics professor, Dr. Andrew Patterson, discovers that an elite fraternity he had joined 22 years before in college is really a callous banking and business cabal that obtains wealth and power for its members through nefarious practices.
After the Crash 
I love this movie! A real favorite. It really gives you insight on how secret societies influence their members and subsequently world events.
It also accurately depicts a common method used to discredit those attempting to speak truth to power.