Harry Potter premiere: Studio Tour photos31 March 2012 at 0:48 pmLink copiedRead full article1 / 4Harry Potter premiere: Before walking the red carpet, Bonnie Wright, Tom Felton and Rupert Grint messed around on set.Harry Potter premiere: Before walking the red carpet, Bonnie Wright, Tom Felton and Rupert Grint messed around on set.See the celebrities who rocked the red carpet at the Warner Bros. Studio Tour London: The Making of Harry Potter