The Michael Jackson This Is It movie, which features footage of the late singer rehearsing for his sell-out concerts at the O2 Arena, is to be released worldwide on October 30.
Sony Pictures paid £35 million to promoters AEG Live for the film, which will be called This Is It, the name of the series of London shows.
It will use hundreds of hours of video of Jackson preparing for the concerts days and weeks before he died in June. Filming took place at the Staples Centre in LA and The Forum in Inglewood, California.
The movie will also feature interviews with some of the King of Pop's collaborators on top of 3D sequences which were to have been screened at the gigs.
High School Musical director Kenny Ortega, Jackson's creative partner for the concerts, said: "It will show Michael as one of the greatest entertainers in the world."
It follows revelations that detectives investigating his death are trying to block news of what killed him from being made public.
Officers have asked the Los Angeles coroner's office not to release the results of the post-mortem examination until police have finished investigating his death.
Meanwhile investigators raided a Las Vegas pharmacy for prescriptions for Jackson written by his personal physician Dr Conrad Murray.
The revelations come after Omer Bhatti, Jackson's "secret son", was pictured looking every bit a part of the family with the late singer's two children, Prince Michael and Prince Michael II – known as Blanket.
They were photographed while on a trip to a book shop in Santa Monica, in California.