When young Steven Spielberg was first offered the screenplay for "Jaws," he said he would direct the movie on one condition: That he didn't have to show the shark for the first hour. By slowly building the audience's apprehension, he felt, the shark would be much more impressive when it finally arrived.
He was right. I wish he had remembered that lesson when he was preparing "Jurassic Park," his new thriller set in a remote island theme park where real dinosaurs have been grown from long-dormant DNA molecules. The movie delivers all too well on its promise to show us dinosaurs. We see th…
