Alternative Titel:Harry Potter y el misterio del príncipe (Spain) HP and the HBP (International) (informal short title) (English title) HP6 (USA) (promotional abbreviation) Harry Potter and the Half-Blood Prince: An IMAX 3D Experience (USA) (IMAX version) Harry Potter e il principe mezzosangue (Italy) Harry Potter e o Enigma do Príncipe (Brazil) Harry Potter und der Halbblut-Prinz (Germany) Harry Potter y el misterio del principe (International) (Spanish title) The Half-Blood Prince (USA) (short title)