Big Shark (2021): cast, story & where to watch
2021 · Film · ★ 5

Released in 2021, Big Shark is a horror film directed by Zhang Jiahao, running about 74 minutes.
What it’s about. In the vast ocean, a giant shark mutated by chemical pollution wreaks havoc. Ruthless businessman Du Heng, seeking to seize a fishing ground, traps its owner, Lin Haiyang, in debt and has him imprisoned. Lin Haiyang’s son, Lin Kai, attempts a rescue but is captured alongside Pei Lu, a worker’s daughter investigating the pollution. As the shark grows more aggressive, Du Heng uses them as bait for a deadly hunt. Aboard a fishing vessel, a brutal battle unfolds where human greed and nature’s fury collide.
How it landed. With an audience score of 5.0/10, Big Shark has proved divisive with audiences.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch Big Shark page.
If you liked it. Fans of Big Shark tend to enjoy Psycho, The Silence of the Lambs, The Shining and Alien.
Frequently asked
- Where can I watch Big Shark (2021)?
- Streaming, rental and purchase options for Big Shark change frequently. Check our where-to-watch page for the latest availability in your country.
- Is Big Shark worth watching?
- Big Shark holds an audience score of 5.0 out of 10, and is a strong pick if you enjoy horror. Reactions are mixed, so it may depend on taste.
- When was Big Shark released?
- Big Shark was released in 2021, with a runtime of about 74 minutes.