INTERVIEW Daniel Radcliffe on writing poetry and whether he's been published - he has in a magazine called Rubbish and INTERVIEW Michael Gambon on Daniel's poetry at the Harry Potter and the Half-Blood Prince Press Conferences at London...

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

INTERVIEW: Emma Watson on how this film is different from the previous five, being overwhelmed by the success of the franchise, on fellow cast member. at the 'Harry Potter And The Half Blood Prince' Premiere at New York NY. (Footage by...

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

INTERVIEW: Warwick Davis on the cast growing older as part of this cultural phenomenon and what makes this film different from the previous five. at the 'Harry Potter And The Half Blood Prince' Premiere at New York NY. (Footage by...

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

INTERVIEW Daniel Radcliffe, David Heyman, David Yates, Bonnie Wright on the death of Robert Knox - an actor who joined the cast on this film at the Harry Potter and the Half-Blood Prince Press Conferences at London England. (Footage by...

J K Rowling at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

INTERVIEW David Barron on the cast not being allowed to keep any memorabilia from the set and INTERVIEW Emma Watson on being aware of this at the Harry Potter and the Half-Blood Prince Press Conferences at London England. (Footage by...

INTERVIEW Daniel Radcliffe on whether his drinking of the potion in the movie could be seen as Harry Potter taking drugs and on how the movie works for children and adults and on whether girls like him at the Harry Potter and the...

INTERVIEW Bonnie Wright on never knowing how big her character would be in the Harry Potter universe at the Harry Potter and the Half-Blood Prince Press Conferences at London England. (Footage by WireImage Video/GettyImages)

EVENT CAPSULE CLEAN: Harry Potter and the Half-Blood Prince Press Conferences, London, England, United Kingdom, 7/6/09 (Footage by WireImage Video/GettyImages)

EVENT CAPSULE CLEAN: Harry Potter and the Half-Blood Prince Press Conferences, London, England, United Kingdom, 7/6/09 (Footage by WireImage Video/GettyImages)

INTERVIEW Daniel Radcliffe on being older, on working with Michael Gabon at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

Robbie Coltrane at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

Signage at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

Emma Watson at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

Daniel Radcliffe at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)

Harry Potter And The Half-Blood Prince World Premiere at the Harry Potter And The Half-Blood Prince at London England. (Footage by WireImage Video/GettyImages)