Warner Bros released a brand new movie trailer from the upcoming fantasy film ” Harry Potter and the Half-Blood Prince ” by director David Yates ( Harry Potter and the Deathly Hallows: Part I ) and starring Daniel Radcliffe ( Journey ), Rupert Grint ( Cherry Bomb ), Emma Watson ( Napoleon and Betsy ) and Alan Rickman.

Synopsis: As Harry Potter begins his 6th year at Hogwarts School of Witchcraft and Wizardry, he discovers an old book marked mysteriously “This book is the property of the Half-Blood Prince” and begins to learn more about Lord Voldemort’s dark past.

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