I realize that you are trying to illustrate the popularity of harry potter and thus the popularity one would assume WWOHP will receive, which I won't dispute. I do want to correct your statements though:
The following are facts:
Pirates: Dead Men's Chest from 2006 opened with 55.8 million in 2006, pretty comparable to HP's opening day of 58.1 million, although realizing this was on a Wednesday. Either way, far from "blowing the doors off" anything Disney has released lately. In fact, Pirates DMC remains the third highest grossing film worldwide of all time, and only one of 4 films to ever cross 1 billion dollars (no HP film has done this). Putting aside the merits of that particular film, Pirates DMC remains more popular of a film than any Harry Potter film domestically or worldwide to date. That said, I don't know how much impact the popularity of those films translated into attendance at the parks.....
Also, Up actually made 93 million in its first week. Sorry to burst your bubble that HP 6 "made more money in one day" than Up did in its first week. In fact, Up is this summer's second best film to date behind only Transformers in terms of box office receipts (although I believe HP will end higher in the end). Up is also Pixar's second highest grossing film behind only Nemo.
Source: boxofficemojo.com