Disney’s sci-fi sequel “ Tron: Ares ” failed to connect in its box office debut, collecting a disappointing $33.5 million from 4,000 North American theaters over the weekend. It’s a weak start, even for a five-decade old franchise that’s never been a commercial juggernaut. The trouble is that “Tron: Are” carries a massive $180 million price tag, not including the many millions the studio spent on marketing. Overseas, “Tron: Ares” didn’t make up much ground, adding another $27 million and