As an escaped megalodon swims close to a busy beach, we see humanity at its most chompable: chubby kids in floaties, doofuses on pontoons, some dork in a tight Speedo rolling around in one of those big inflatable Zorb balls. But alas, the movie is a gore-free PG-13, and though CGI has long since replaced animatronics as the monster movie’s weapon of choice, one thing hasn’t changed: giant killer fish still look like they’re made of rubber.