Last night, NBC ran a half-hour special -- more of an infomercial -- on the opening of a vast Harry Potter attraction at the Universal Orlando theme park, using expanded versions of the set designs from the Harry Potter films. I thought, at least the promoters got the order right. The Potter films have been batting .500 in my book, a very high average for a lengthy series; both their imagery and their storyline provide rich fodder for spin-offs. But movies based on theme-park rides, instead of the other way around, tend to drop into wretched excess swiftly. Is anyone apt to re-watch the "Pirates of the Caribbean" sequels? Does anyone even remember "The Haunted Mansion?"