There was hardly a celebrity in Hollywood who didn't show up at the Los Angeles premiere of "Michael Jackson's This Is It" on Tuesday night at the Nokia Theatre. Many of those celebrities were simply fans of the King of Pop. But there were also some in attendance who had worked with the film's director, Kenny Ortega. Corbin Bleu was one of those lucky people.

Bleu co-starred in Ortega's "High School Musical" films, and he couldn't help but feel that the director's latest opus was incredibly special. "[Everyone] needs to go see this film, 'cause you get a chance to see [Jackson's] process," Bleu said. "You get a chance to see what it's really about when it comes to work, 'cause the thing about Michael, he's a perfectionist."

Corbin noted that the movie shows Jackson pushing his dancers and musicians to work hard, focusing on making a flawless finished product. "He works and he doesn't care — when it comes to every single person in that room, he wants everybody to bring it and not a single person is going to be faulted," he said. "That's what really is amazing about him. There's so much love. Go see the film. It'll change you."

Earlier in the night, Bleu's "High School Musical" co-star Ashley Tisdale recalled how incredible it was to meet Jackson. "It was amazing. I can't even describe," she recalled. "I was just, like, in awe. You can't even speak. He was glowing. He's an icon. You're speechless."

Check out everything we've got on "Michael Jackson's This Is It."