The Meg delivers a fierce prehistoric bite without falling prey to campiness or gratuitous gore. The shark thriller has more science fiction elements than expected. Director John Turteltaub (Cool Runnings, National Treasure) has a story to tell with the monster hunt. This is both a positive and negative. The characters are fully fleshed out, but the narrative lulls with their excessive dialogue. Thankfully the bone chomping action kicks in on cue…