Some $18 million in tickets have already been pre-sold for Disney’s 3-D Hannah Montana & Miley Cyrus: Best of Both Worlds Concert movie, which opens tonight at midnight. Sources tell EW.com that the movie is on track to become the highest-grossing film to bow on Super Bowl weekend — obviously, not a traditionally strong weekend at the box office. (When a Stranger Calls, which earned $21.6 mil on Super Sunday two years ago, is the current leader.) But leave it to the folks at Disney to realize that there are plenty of young girls who won’t be at home eating chili and watching football all day Sunday. Insiders predict the movie’s bow in 683 theaters will gross in the mid-$20 million range — which is enormous. What’s interesting is that the film’s tracking numbers are in the toilet, but that’s because tracking services still use in-home calling to reach moviegoers, and most moviegoers under the age of 25 don’t use land lines, they use cell phones.