Oh, and since we're delving into character deaths, I'll say this for the sake of formality. MAJOR SPOILERS AHEAD, READ AT YOUR OWN RISK.
From protagonists to antagonists, we turn to the despicable personage of Hori, who is arguably the main antagonist of The Hidden Blade. A theme throughout the movie is how the honour and traditions of the samurai are beginning to come under threat during the 1860s, the last years of the Edo period. Main protagonist Munezo Katagiri is forced to watch the life of his friend Yaichiro Hazama twisted and ruined by the corrupt Edo elite, represented by Hori. Hori is shown to be truly repulsive, showing no respect to Katagiri and trying to force him to compromise the samurai code. He then arranges Hazama's dishonourable death, lies to Hazama's wife to receive sexual favours for the promise of Hazama's survival, then all but laughs even after her suicide. Katagiri is the man who whose unbending fealty to his clan meant the killing of his fallen friend, but when faced with Hori's horrific actions, he acts as Hazama's avenging angel. Using a secret style, Katagiri punctures Hori's heart, fatally wounding him. This is a richly-deserved death; for Westerners we seen a plain old horrible man, for Japanese viewers this is a man who soils treasured samurai traditions. His death is also quite apt; destroyed by the very man he forced to influence, with a technique he could never hope to understand, on behalf of the memories of those he condemned to death.
Death is not just a singular event, but can be the thematic foundation of a story. An example of this can be found within Star Trek Generations. Death, the end of things and the meaning of one's life form a recurring theme in the movie. Main villain Soren's obsession with reaching the blissful extra-dimensional Nexus partially stems from the death of his family at the Borg's hands; Picard's brother and nephew are reported dead, leaving Picard as the last of the line; and the movie itself opens with original protagonist James Kirk apparently dying saving the Enterprise-B from the Nexus ribbon. The movie ends with Picard and Kirk ironically using the Nexus itself to foil Soren's plans, but this results in Kirk's true death. Kirk's death alone would be shocking enough to long-term fans of the series, but the movie's real strength is that it uses death and endings as a recurring theme, even if many of the deaths seen during the story are reversed. This lends the movie a far greater weight than if it had been just one death.
In books, words are used to describe nearly everything, even when illustrations help. This can result in death scenes becoming clunky if handled wrong. In the visual arts, particularly in movies, a death can be illustrated in a fraction of the time it might take a book. It can also leave a more vivid impression, as the scene is exactly that; visual. As humans, we respond better to visual inputs, we see and we assimilate through seeing. Seeing death makes it that much more real; thus seeing death in movies, in all its subtle and gory forms, makes it more real to us.