The upcoming Harry Potter movie, the Half-Blood Prince is due to release November 21st, probably later in Australia. T_T. First trailer has been released today. You have to download it and then open the file, and it will stream to your computer.If you can’t be bothered watching the trailer, screencaps at MuggleNet. Harry Potter films are always fun to watch. Should be a good film to watch, seeing as all the main characters are all grown up etc.