As if you needed another reason to see The Dark Knight in IMAX next weekend, here's another. Snitchseeker has confirmed from IMAX that a short Harry Potter and the Half-Blood Prince will be attached to IMAX prints of The Dark Knight. Here's the relevant portion of the email below:

"There will be a SHORT, 15 second trailer for Harry Potter and the Half-Blood Prince prior to The Dark Knight.

Regards,

IMAX Corporation"

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.