731 (2025)

A harrowing Chinese war drama confronting the documented horrors of Imperial Japan's Unit 731 biological warfare program during World War II.

731 - Movie Information

  • Original Title: 731
  • Release Year: 2025
  • Directed by: Zhao Linshan
  • Type: Movie
  • Genres: Drama, War
  • Age Rating (US): NR
  • Runtime: 2h 5m
  • Original Language: Chinese
  • Spoken Languages: Russian, Mandarin, Japanese
  • Release Date (Theatrical): September 18, 2025 (Australia - MA 15+), January 21, 2026 (South Korea - 15), September 18, 2025 (China)
  • Alternative Titles: Evil Unbound (CN), Evil Unbound 731 (AU), 731 Biochemical Revelations (US)
  • Production Companies: Changchun Film Studio, Poly Film Investment, Beijing HY Media
  • Production Countries: China

731 - Plot

Based on true events set during WWII in Northeast China, an ordinary man is thrust into a turbulent fate against the backdrop of the inhumane bacterial experiments conducted by the Japanese Imperial Army's notorious Unit 731.

731 - Trailer

Watch the official trailer and see the story of Unit 731 unfold on screen:

Never forget.

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731 - Cast & Crew

Director(s)

  • Zhao Linshan

Main Cast

  • Jiang Wu
  • Wang Zhiwen
  • Li Naiwen
  • Sun Qian
  • Joyce Feng
  • Lin Ziye
  • Irene Wan
  • Li Shanyu
  • Yasuyuki Hirata
  • Ono Tatsumi

Writers

  • Zhao Linshan

Producers

  • Zhang Wang

731 - FAQs

Is 731 based on a true story?

Yes, 731 is directly based on true historical events. Unit 731 was a covert biological and chemical warfare research unit of the Imperial Japanese Army that conducted lethal human experimentation on thousands of prisoners in Manchuria during World War II. The film dramatizes these documented atrocities.

Where can you watch 731 online?

Streaming availability for 731 may vary by region and platform. For the most current and comprehensive list of where to watch or rent 731 in your country, visit JustWatch, which tracks real-time availability across all major streaming services and digital rental platforms.

What is 731 the movie about?

731 follows an ordinary Chinese man swept into extraordinary danger during World War II in Northeast China. Set against the backdrop of the Imperial Japanese Army's notorious Unit 731, the film depicts the horrific biological experiments carried out on prisoners and the human cost of one of history's darkest chapters.

Who are the main actors in 731?

The film stars Jiang Wu as Wang Yongzhang and Wang Zhiwen as Du Cunshan, alongside Li Naiwen, Sun Qian, Joyce Feng, Lin Ziye, Irene Wan, Li Shanyu, Yasuyuki Hirata, and Ono Tatsumi in key supporting roles.

What is the age rating for 731?

731 is rated NR (Not Rated) in the United States. In Australia it carries an MA 15+ classification, and in South Korea it is rated 15. Given its subject matter — wartime atrocities and human experimentation — the film contains intense and disturbing content not suitable for younger viewers.

Who directed the 2025 film 731?

731 was directed by Zhao Linshan, who also served as the film's writer. Zhao brings a focused authorial vision to this historical war drama, crafting a narrative centered on individual human experience within the documented horrors of Imperial Japan's Unit 731 program.

What is the runtime of 731?

731 has a runtime of 2 hours and 5 minutes (125 minutes). The film's substantial length allows director Zhao Linshan to explore the personal and historical dimensions of the Unit 731 story with appropriate depth and dramatic weight.

What are movies similar to 731?

If you enjoyed 731, you may also appreciate Killers of the Flower Moon (2023), Mississippi Burning (1988), Selma (2014), Brubaker (1980), and Freedom Writers (2007) — films that similarly confront historical injustice, systemic violence, and the resilience of ordinary people caught in extraordinary circumstances.

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