Actors Oliver (L) and James Phelps arrive for the world premiere of "Harry Potter and the Deathly Hallows - Part 2" in Trafalgar Square, in central London, July 7, 2011.[Photo/Agencies]

Actress Julie Walters arrives at the world premiere of "Harry Potter and the Deathly Hallows - Part 2" in Trafalgar Square, in central London, July 7, 2011.[Photo/Agencies]