The trailer for This Is It, the documentary of the late Michael Jackson's final concert rehearsals, will be shown for the first time this Sunday.

The trailer has been extracted from over 100 hours of behind-the-scenes footage of Jackson as he prepared for his ill-fated comeback gigs in London.

It is thought to include the superstar's final rehearsal, which took place at the Los Angeles Staples Center just two days before his death on June 25.

This Is It has been directed by choreographer Kenny Ortega and is due to be given a two-week cinema release from October 28.

The trailer will be broadcast during the MTV Video Music Awards ceremony in New York.

Meanwhile, the poster for the film has been released and can be seen below:

(by Jason Gregory)