Universal Studios Hollywood marked the opening of “The Wizarding World of Harry Potter.” Oscar, Emmy, Golden Globe, BAFTA and Grammy award-winning composer John Williams conducted the L.A. Philharmonic synchronized to a three dimensional digital lighting projection on Hogwarts castle.

“The Wizarding World of Harry Potter” opens to the public on Thursday, April 7.

Joining in the celebration were Harry Potter film talent, including Tom Felton (Draco Malfoy), Evanna Lynch (Luna Lovegood), James and Oliver Phelps (Fred and George Weasley), and Warwick Davis (Professor Flitwick), as well as Stuart Craig (Production Designer, Harry Potter films and “The Wizarding World of Harry Potter”).

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Other celebrities included Mindy Kaling (“The Mindy Project”), Thandie Newton (“Crash”), Vanessa Hudgens (“Grease Live”), Ed O’Neill (“Modern Family”), Jaime Camil (“Jane the Virgin”), Emmy Award-winner Greg Nicotero (Executive Producer, “The Walking Dead”); Emmy Award-winner Chris Hardwick (Comedian/host, “The Talking Dead”), Alanna Masterson (“The Walking Dead”), and Golden Globe-winning actor, Billy Bob Thornton, among others.

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More than five years in the making, and inspired by J.K. Rowling’s stories and characters that were brought to life in the Warner Bros. films, “The Wizarding World of Harry Potter” has been recreated as a real-world interpretation at Universal Studios Hollywood.