Megalodon (2018)

Megalodon knows exactly what it is: a lean, made-for-TV creature feature that wastes no time getting a military crew into a tight, steel-corridor standoff with something impossibly huge in the water. There’s a scrappy, old-school charm to watching characters improvise with whatever’s on board—radar screens, depth charges, and sheer nerve—while the film keeps the vibe pulpy, tense, and satisfyingly straightforward. Michael Madsen’s presence adds a welcome bit of gravelly authority, and the action leans into “survive the next five minutes” momentum rather than overcomplicated mythology. If you’re looking for prestige sci-fi or subtle horror, this isn’t it, but if you want an easy, bite-sized blast of shark-and-guns spectacle with moderate gore and a steady suspense hum, it delivers the goods.

Megalodon (2018) is clearly aiming for a scrappy, high-stakes “trapped at sea with a monster” ride, with military hardware and a giant shark doing the heavy lifting. The problem is it rarely delivers the punch you want from that setup—tension, spectacle, and pacing feel oddly flat, and the action comes off more like going through the motions than leaning into fun chaos. Michael Madsen adds a bit of gravitas, but even he can’t disguise that this plays like disposable TV creature-feature filler rather than a must-watch shark thriller. If you’re hoping for the thrills and polish of bigger shark movies, you’ll likely be irritated; if you enjoy low-budget monster movies as background entertainment and can tolerate some clunky execution, you might get a little mileage out of it.