News over the weekend lets us know that the dates for the Harry Potter and the Half-Blood Prince premieres have been announced:
We do know that the Japanese date has been confirmed by Warner Bros. International but that the New York and London dates may still change. We will update with additional information as soon as we receive it.
There is also news that Warner Bros. will be launching a contest to win a trip to London for the premiere. No additional information has been released yet, but we will update as soon as we can.