woolite darks. ♪ well, believe it or not, for the past 40 years, the most groundbreaking special effects have emerged from one extraordinary studio, industrial light and magic, which was founded by george lucas. >> from "star wars" to "jurassic world," they have stretched the boundaries of film and science, too. abc's dan harris takes a look behind the scenes. >> reporter: it is the biggest blockbuster of the summer, devouring more than $500 million in profits since it premiered in june. >> these animals are thinking, i've got to eat. >> reporter: the next huge hit on the horizon? >> chewy, we're home. >> reporter: "star wars" fans already in a frenzy for the release in december of "the force awakens." now, we take a sneak peek behind