RTÉ.ie and Warner Brothers have teamed up to give you the chance to see the trailer 'Harry Potter And The Half-Blood Prince'.

Click here to watch the trailer in Windows Media Player.

Click here to watch the trailer in Quicktime.

In what is the sixth film of seven in the Potter series, it seems that the audience will meet a young Voldemort in a film in which Harry (Daniel Radcliffe) is expected to battle against enemies both within and without Hogwarts school as the preparations for a final confrontation continue to escalate.

Going on the trailer, Dumbledore's early career, introduced via a clever and original flash-back device in which we see the actor Michael Gambon play a considerably younger headmaster of Hogwarts, looks like it could play an important role.....