Bosses at the Screen Actors Guild are warning union members not to participate in the upcoming documentary about Michael Jackson's doomed "This Is It" tour. Sony Pictures purchased rehearsal and behind-the-scenes footage filmed at the Los Angeles Staples Center from concert promoters AEG Live, as Jackson was preparing for his residency at the O2 Arena in London. Sony is planning a two-week run beginning in late October, but SAG leaders announced that the film's producers failed to agree to the minimum basic terms and conditions for performers and background actors employed on the project.

The SAG issued a statement which reads:

"Guild members are reminded of their obligation not to accept employment on any non-signatory project, as well as their obligation to confirm with the guild that a project is signatory. Employment on any non-signatory project within the guild's jurisdiction may subject a member to a Rule One violation."

The union did not have any jurisdiction over the rehearsals or behind-the-scenes footage during filming, but since it is now being made into a documentary movie, they are warning their members not to get involved.

Michael Jackson was due to take the stage in July, just weeks after he died on June 25.