With Harry Potter and the Order of the Phoenix set for release on July 14th in Japan, Warner Bros. is offering a way for 40 fans to attend the premiere.
According to Carol:
You will need to collect the seals or the stubs of the movies and put them on the passport. Then we can subscribe ONLY at the theater. 40 lucky winners will be chosen to attend the premiere! The campaign opened on September 30th and runs through January 12th, 2007.
If you live in Japan you can read more about the competition here. This prize is one of three in all according to Carol.
Thanks to Carol via Page for the tip.