Footage of Michael Jackson performing 'Smooth Criminal' during rehearsals for his comeback tour has been released.

The clip forms part of the movie This Is It, which premiered worldwide on Tuesday (October 28).

In the video, Jackson can be seen performing his infamous dance routine for 'Smooth Criminal' - one of the late singer's biggest hits.

The This Is It shows, which were due to begin in London in July, would have marked Jackson's comeback.

The movie, directed by choreographer Kenny Ortega, pieces together footage from over 100 hours of rehearsals.

(by Jason Gregory)