• Although not confirmed yet, it appears that Dan Radcliffe, Rupert Grint and Emma Watson will only attend the UK premiere for the sixth movie (on July 7th), and no other because of their busy Deathly Hallows film schedule.

It has been confirmed by ICM that they will attend

UPDATE 2: If you read anything about Rupert not attending the U.S. Half Blood Prince Premiere please disregard. He as well as his co-stars Daniel Radcliffe and Emma Watson are scheduled to attend