The 2016 horror movie The Shallows pits Blake Lively against a shark menace, but the shark itself isn’t the most terrifying ...

In the climax, researcher Sophia (Bérénice Bejo) hatches a plan to lure the sharks out of their base in the catacombs and ...

So why are shark movies so popular? "It's the fear of what could be going on with the unknown of [the sea]," she tells BBC News. "Just being stuck in the middle of the ocean is scary enough.