'New' Michael Jackson Single Written In 1983
In this handout photo provided by AEG/Concerts West Michael Jackson and choreographer/director Kenny Ortega rehearse for the 'This Is It' tour on May 6, 2009 in Burbank, California. Getty Images

Michael Jackson just moonwalked back in time a few hours.

Movie theaters will show the Jackson musical documentary "This Is It" as early as 9 p.m. PT on Oct. 27. Sony still has the Kenny Ortega-helmed pic officially slotted to open for a two-week run in more than 3,000 theaters on Oct. 28, dubbing its night-before performances "advance screenings" in about 2,000 locations.

Advance ticketing for all of the domestic shows begins Sunday. Sony also will distribute the film simultaneously in more than 80 international territories.

Sony also plans more than 25 premieres of the film around the world, with 15 or more of the premieres to be staged simultaneously on Oct. 27. In Los Angeles, a premiere will kick off at 6 p.m. Oct. 27 at the Nokia Theatre in downtown L.A.

"Michael Jackson has an army of fans everywhere around the world," said Sony worldwide marketing and distribution chairman Jeff Blake. "By rolling out this film with simultaneous premieres and special advance screenings on Oct. 27, we are giving audiences an incredible opportunity to join together in celebration of Michael Jackson's incredible career."

"This Is It" will feature rehearsal footage and other behind-the-scenes clips shot in advance of Jackson's intended monthlong concert series in London. The documentary project was announced in the aftermath of the singer's death on June 25.