"Michael Jackson's This Is It" *** (out of four): An up-close glimpse of a performer rediscovering his creative fire, Kenny Ortega's often mesmerizing account of Michael Jackson's final months as a performer is a portrait of the artist as an older man.

There are many things "This Is It" - director Kenny Ortega's often mesmerizing portrait of Michael Jackson's final months as a performer - is not. It isn't a concert film. Nor is it a glossy documentary. It most likely isn't even a film the mega-talented and equally troubled star would have wanted his devoted fans to see.

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