Harry Potter and the Deathly Hallows Part I will premiere tonight, marking the beginning of the end for the most successful film franchise in history. Daniel Radcliffe, Emma Watson and Rupert Grint will join fellow cast members on the red carpet in Leicester Square.
JK Rowling's final book has been split into two films, with the second instalment released next summer, because the writers were unable to cram all of the action into two hours.
"When we began working on the screenplay, it became clear we would have to omit too much to do justice to Jo's book in one film," said producer David Heyman.
