Michael Jackson’s This Is It is premiering tonight at a series of screenings in a few cities before opening worldwide tomorrow for an exclusive two-week run. Rolling Stone will have a full report on the movie — culled together from the King of Pop’s rehearsals for what would have been a record-breaking 50 concerts at London’s O2 Arena — first thing tomorrow, but for now, catch the big-name stars arriving at the movie’s official debut in a live stream.