Mouseplanet reported this clousure in the update a week ago here is what it said...
"Due to a private event on Sunday, April 22, 2007,
Disneyland Park will be opening at 6:30 a.m. and closing at 4:00 p.m. Disney's California Adventure Park will extend its hours that day and will be open from 10:00 a.m. until 11:00 p.m."
The private event in question is the opening night festivities for the Travel Industry Association, which is holding its "International Pow Wow" April 21 to 25 in Anaheim. The private party is scheduled from 7:00 to 10:30 p.m. inside Disneyland.
They also all but confirmed in the mouseplanet update this week that the pirates premiere will be May 19.....
It seems certain that the premiere of the third Pirates movie, Pirates of the Caribbean 3: At Worlds End, will be held at Disneyland on Saturday, May 19, 2007. According to a notice posted on the Disneyland Web site, Disneyland will open at 6:30 a.m. that day, and close early at 5:00 p.m. Disney's California Adventure will operate on an extended schedule, opening at 10:00 a.m. and closing at 11:00 p.m.