Bob GarverSpecial to the Valley NewsIt’s around the two-thirds mark in “Meg 2: The Trench” that the audience learned that some of the film’s minor aquatic monsters – not the megalodons or “Megs” of the title – have developed the ability to walk and attack on land. It’s a mistake to bury such a huge twist this late in the movie. That the human characters aren’t safe on land is a movie in and of itself. Make it the selling point of the third movie. Better yet, make it the selling point of this movie, because nothing about the first two-thirds was working anyway.Jason Statham is back as diving expert Jonas Taylor. He has some job with an undersea research station, but even within the movie, everyone knows he’s only here to do action hero stuff. Working for bi
