When director Renny Harlin burst onto the Hollywood scene in the late 1980s and early 1990s, he quickly established himself as a master of high-octane, unapologetically maximalist action cinema. Films like Die Hard 2, Cliffhanger, and his 1999 aquatic horror masterpiece Deep Blue Sea proved that he knew exactly how to construct nail-biting suspense out of the most preposterous premises. In his 2026 survival thriller Deep Water, Harlin returns to the literal and figurative waters that defined the peak of his career. Merging the tense, multi-character melodrama of a classic 1970s airplane disaster film with the brutal, visceral terror of a modern creature feature, Deep Water emerges as a deeply satisfying, albeit highly formulaic, piece of popcorn entertainment. It is a film that fully understands its own pulp pedigree, refusing to wink condescendingly at the audience while delivering an unrelenting ride that successfully maximizes the simple dread of what might be swimming just beneath ...