Disney and Pixar's "Incredibles 2" is tracking to be a big hit at the box office this summer. Early tracking numbers have it currently on pace to double the opening weekend of its 2004 predecessor, with a $140 million-plus opening weekend. The original 'Incredibles' opened to just over $70 million in its first weekend. If the 'Incredibles' sequel tops $140 million, it will break the record for best domestic start in box office history for an animated movie.