Dead man dancing in “Michael Jackson’s This Is It,” and, boy, could he dance. The film, pieced together from 100 hours of rehearsal footage for his never-to-be concerts in London - concerts scheduled and contracted for before his untimely death last June - seems unfinished, and that is because it is unfinished: We will never see the show being rehearsed.

“This” really is his final curtain call. Jackson, a shockingly gaunt man with large hands and feet, a delicate head and a face that was both iconic and grotesque, speaks in that whispery, girlish voice, and yet commands attention, and when he sings and dances, which he does at half-speed most of the time, it is obvious he remained divinely gifted.