Potter fans camp in Trafalgar Sq. before premiere
Harry Potter fans are camping out in London's Trafalgar Square ahead of the premiere of the final film in the fantasy series. The world premiere of 'Harry Potter and the Deathly Hallows -- Part 2' will take place in London on Thursday, an action-packed finale to bring the curtain down on a saga that has enthralled audiences worldwide. Duration: 01:25.