Harry Potter fans arrive for London's biggest ever film premiere

Harry Potter and the Deathly Hallows: Part Two, the final film in the adaptation of JK Rowling's story of a boy wizard, is set for London's biggest ever film premiere on Thursday night.

It will be the first time a film premiere has been held in both Leicester Square and Trafalgar Square, where hundreds of Potter fans have been camping out, hoping to meet the film's stars.

Tim Muffett reports.