Oclumencia has received word from Warner Bros Brazil that the teaser trailer for Half-Blood Prince will be released in the South American country on August 15th, where it will be attached to the upcoming Star Wars: The Clone Wars.

Warner Bros Brazil also confirmed, as did Warner Bros Mexico yesterday, that the U.S. debut of the teaser trailer will be with The Mummy: Tomb of the Dragon Emperor on August 1st.

We are, as yet, currently unaware of when the trailer will be available online, or in other countries besides the U.S. and Brazil, but will update when we are made privy of that information.

Harry Potter and the Half-Blood Prince hits theatres November 21, 2008.