"There will be a SHORT, 15 second trailer for Harry Potter and the Half-Blood Prince prior to The Dark Knight.
There has been no official word from Warner Bros. if this trailer will be attached to standard prints of the film. We'll surely keep you posted on this as soon as we get more information.
Harry Potter and the Half-Blood Prince opens on November 21.
The Dark Knight was released July 18th, 2008 and stars Christian Bale, Heath Ledger, Aaron Eckhart, Michael Caine, Maggie Gyllenhaal, Gary Oldman, Morgan Freeman, Monique Gabriela Curnen. The film is directed by Christopher Nolan.
Harry Potter and the Half-Blood Prince was released July 15th, 2009 and stars Daniel Radcliffe, Michael Gambon, Dave Legeno, Elarica Gallacher, Jim Broadbent, Geraldine Somerville, Bonnie Wright, Julie Walters. The film is directed by David Yates.