This pretty well sums up the movie for me.

"Propaganda is communication aimed at influencing the attitude of a community toward some cause or position. As opposed to impartially providing information, propaganda in its most basic sense, presents information primarily to influence an audience. Propaganda often presents facts selectively (thus lying by omission) to encourage a particular synthesis, or uses loaded messages to produce an emotional rather than rational response to the information presented. The desired result is a change of the attitude toward the subject in the target audience to further a political agenda."

Wikipedia