A deep-sea research submarine becomes stranded miles below the ocean surface after a mysterious systems failure. As oxygen runs low and pressure mounts, the crew battles rising panic, hidden tensions, and an unseen force outside the hull.
Watch the official Submarine 2026 trailer in HD below.
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Submarine of the Deep Trailer
United Kingdom 07 March 2026
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Have you watched Submarine yet? What did you think about it?
Artwork, screen shots, trailers and other imagery is © 2026 ITN Distribution, ChampDog Films.
