Operation Hadal

Operation Hadal or Operation Leviathan is a 2025 action war film. It is a follow-up to the 2018 film Operation Red Sea. Differing from the previous film's above-water action set-pieces, this film is about a nuclear submarine and features mainly underwater action. A co-production between China and Hong Kong, the film was produced by Bona Film Group and directed by Dante Lam, and it stars Huang Xuan, Yu Shi, Zhang Hanyu, and Du Jiang.

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