Gantz

Two teenagers on a subway platform step in to pull a man away from danger, but the rescue goes wrong and they wake up in a bare room dominated by a mysterious black sphere. The orb assigns them a mission that drives them into deadly hunts against aliens hiding among Earth's population. Kei Kurono and Masaru Kato, now caught in a brutal test, navigate neon-lit city streets, claustrophobic corridors, and grim encounters as they try to understand why they were chosen. They clash over methods and loyalties, weigh the value of a stranger's life against the costs of violence, and confront a distant power that seems to control their fate. The setup blends horror, action and science fiction, forcing them to rely on quick wits, nerve and uneasy teamwork to survive.

Directed by Shinsuke Sato, Gantz released in 2010 as a live action adaptation of Hiroya Oku's manga, with a screenplay by Yusuke Watanabe and Hiroya Oku. The production aims for a kinetic, brutal atmosphere that matches the source material.

Fans remember the stark chamber scenes around the black sphere and the relentless city hunts, and the film helped cement the idea that manga can translate into high energy live action. The look, score and practical effects created a tone that echoed through later genre thrillers, influencing fans and filmmakers.

Critics praised the brisk action and strong creature design while noting pacing issues and adaptation choices. The film probes mortality and loyalty, focusing on friendship under pressure, and asks if ordinary people can stay humane when faced with ruthless alien enemies. The themes of choice, consequence and survival stay at the center.

Box office: Worldwide gross was modest, reflecting a niche appeal that drew a devoted fan base but did not become a blockbuster. It remains a notable entry in manga to screen adaptations with fans still debating its bold choices.