What term describes the use of film to convey propaganda messages during a conflict?

The term that best describes the use of film to convey propaganda messages during a conflict is propaganda film. This type of filmmaking is specifically designed to influence audiences' opinions, beliefs, or actions regarding a particular issue or cause, especially during times of war or political unrest. Propaganda films often present biased or emotionally charged content to promote a specific agenda, instill national pride, or demonize the enemy.

By focusing on the intended persuasive effect of these films, propaganda films go beyond mere entertainment or information to actively shape public perception and attitudes. This is distinctly different from documentary films, which typically aim to present factual accounts without overt bias, and experimental films, which explore innovative or avant-garde approaches to storytelling and visual style. Cult films, which often gain a following due to their quirky or unconventional nature, do not typically serve the purpose of conveying propaganda messages. Thus, propaganda film is the appropriate classification for films specifically created to disseminate ideological messages during conflicts.