"Zeitgeist" is a film created by film-maker Peter Joseph (not sure what else he has made). It is in 3 parts:
1) Religion - He seems to draw heavily on the works of Thomas Paine (from "The Age of Reason") and Joseph Campbell (several of his books, like the 4 book series "Masks of God", plus "Hero with a Thousand Faces" and "Power of Myth") and those who were influenced by their research. Essentially examining the history of Christianity and how it drew from pagan faiths (see: Council of Nicaea 1 & 2).
2) 9-11 - He believes in the 9-11 conspiracy theories, or at the very least is sympathetic to them. He does a good job elevating the discussion, even if you don;t buy into it. He doesn't seem to draw a hard conclusion other than the fact that it wasn't as simple as presented in the press - that is, he doesn't explicitly say the US is directly responsible for planning and executing the attacks, thoughit seems he may support such a statement.
3) Federal Reserve - He does a pretty good job outlining the US monetary system & banking in general, though he leaves out some key items (fractional reserves, etc.). I'm guessing he drew from Griffin's "Jeckyll Island" book, as have others, but he should have drawn on Greenspan's "Capitalism: The Unknown Ideal" (1966) also.
Despite the depressing air of sections 2 & 3 (well, and section 1 if you're a fundamentalist Christian), the film ends on an optimistic note (quoting both Jimi Hendrix and Carl Sagan) embracing the power of human action & the individual.
You can find the movie in 3 parts on YouTube if you are only interested in a particular section. I just played it with the volume way up while I was working out...though part 1 has some excellent visuals.