For the film with Jet Li, go to War (film).

War film is a film genre concerned with warfare, usually about naval, air or land battles, sometimes focusing instead on prisoners of war, covert operations, military training or other related subjects. Sometimes they focus on daily military or civilian life in wartime without depicting battles. Their stories may be fiction, based on history, docudrama or occasionally biographical. Most war films often include a romance somewhere in the plot.

The term anti-war film is sometimes used to describe films which bring to the viewer the pain and horror of war, often from a political or ideological perspective.