Actress Emma Watson cried at the world premiere of Harry Potter and the Deathly Hallows - Part 2. It's a bittersweet moment for the Harry Potter cast. Today is the London premiere of the latest and final film of the Potter series. Thousands of fans braved weather and security restrictions in Trafalgar Square on Thursday to bid farewell to the adored boy wizard who cast a spell on Potter fans around the world. And doing well not to dissapoint his fans, Daniel Radcliffe who was expected to miss the London premiere, surprised everyone by arriving at the premiere in a three-piece grey suit, and a tie-clip.

Stars Emma Watson and Daniel Radcliffe signed augtographs for fans who had been camping out in the Square for over two days.

Harry Potter and The Deathly Hallows Part 2 World Premiere
Trafalgar Square, in London- July 7,2011 Reuters
J.K. Rowling and Cast Share a Tearful Moment
World premiere of "Harry Potter and the Deathly Hallows Part 2" in Trafalgar Square in London- July 7, 2011 Reuter
J.K. Rowling and Cast Share a Laugh
World premiere of "Harry Potter and the Deathly Hallows Part 2" in Trafalgar Square in London- July 7, 2011 Reuters
Cast Looks On As J.K. Rowling Speaks
World premiere of "Harry Potter and the Deathly Hallows Part 2" in Trafalgar Square in London- July 7, 2011 Reuters
Rupert Grint, Emma Watson, Daniel Radcliffe
World premiere of "Harry Potter and the Deathly Hallows Part 2" in Trafalgar Square in London- July 7, 2011 Reuters
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