Actress Nat Tena 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]

Actor Warwick Davis (C) and his family arrive at the world premiere of "Harry Potter and the Deathly Hallows - Part 2" in Trafalgar Square, in central London, July 7, 2011.[Photo/Agencies]