Topic is propaganda. How the aim of propaganda is to influence peoples opinion or behavior actively rather than merely to communicate the facts about something. relate it to the case study Documentary: WW II: The Propaganda Battle, A Walk Through The 20th Century With Bill Moyers (1984) and Mark Crispin Miller, Introduction to 2004 reprint of Propaganda. Also find the common propaganda  that they both documents have similarities in.

exploring the meaning of the topic, meaning that youre making an argument, but basing it on research that explains your case study.