With a sprinkling of movie magic - the trailer for the new Harry Potter film has been unveiled.The sixth big screen instalment, Harry Potter and the Half Blood Prince, sees the famous teenage wizard plunge even darker depths as he joins Professor Dumbledore in his quest to take on evil Lord Voldemort.

The promo shows the Headteacher of Hogwarts give Harry a history lesson as they look back over Voldemort’s life for clues on how to take on “the darkest wizard of all time” in the future.Keeping it in the family - the young actor playing an eleven-year-old Voldemort, or Tom Riddle as he was then known, is actually Ralph Fiennes’ nephew Hero Fiennes-Tiffin.

Director David Yates, who also called the shots on the fifth film, The Order of The Phoenix, returns to helm this feature.Stars Daniel Radcliffe, Rupert Grint, Emma Watson are also back along with Michael Gambon as Dumbledore and Ralph Fiennes as Voldemort.

Harry Potter And The Half Blood Prince opens in cinemas this November - except in Australia where it hits screens in December.