ET's Kevin Frazier hit the red carpet with members of the Jackson family and other stars who stepped out in Los Angeles for the world premiere of the Michael Jackson film, 'This Is It,' opening in IMAX and conventional theaters.

Michael's brothers Tito and Jermaine attended the premiere. "I'm very proud," Tito said. "My brother would be proud. He [did] everything at the highest level. This is just to show you what his music and his message was about."

Other celebs at the event invcluded Paula Abdul, Julianne Hough, Adam Lambert, Jennifer Love Hewitt, Jamie Kennedy, Vivica A. Fox, the film's director Kenny Ortega, and many more.

The film features footage of the King of Pop's personal life, as well as clips of rehearsals for his concerts that were scheduled to take place in London. It documents his life from April through June of this year, and opens Wednesday.

Watch our video to see all the action!