On the morning of June 18, 2010, the first guests were officially welcomed into Universal Orlando’s new Wizarding World of Harry Potter addition to the Islands of Adventure theme park by none other than Harry Potter himself, Daniel Radcliffe, and, staying true to character, a bit of mischief from the Oliver and James Phelps who play the Weasley twins in the film series. Lines to enter the Wizarding World of Harry Potter on its first official open day stretch outside the park and into nearby Universal CityWalk.