20-plus years ago Sony Pictures chairman Peter Guber carved his name in cultural stone when Spy magazine quoted him as telling a female acquaintance, “The thing you have to understand is, this is a pussy-driven business.” That definition held for a long time, but two nights ago James Cameron came up with a better one. “There has to be some underlying IP in order to gather enough momentum for studio executives to make decisions the way they make decisions, which is fear-based,” the Avatar director said. “They have to fear making the movie less than not making it. The moment they’re afraid the guy across the street will make the movie and they’ll look stupid — that’s when they’ll make the film. There’s no sense of ‘I want to make this movie, I believe in this movie.’”