When Sony announced plans to turn hundreds of hours of rehearsal footage from Michael Jackson's This Is It concerts into a concert film, Peter Travers was concerned that the limited amount editing time would hurt the final product. However, "I'm kind of shocked at how good this movie is," Travers says in his video review of This Is It.

Read Peter Travers' review of This Is It.

Like the King of Pop himself, This Is It is flawed, spending too much time interviewing Jackson's backup singers and dancers and not enough time showing the entirety of some of the This Is It performances. However, when the film clicks, it provides an incredibly intimate look at one of the greatest performers the world has ever seen, especially in scenes like the one featuring Thriller's "Human Nature." Jackson appears frail in the footage, but once he starts dancing, you're reminded why he was the King of Pop.

For more on This Is It, read Rolling Stone's opening night report on the film. And visit our Essential Michael Jackson Coverage.