Janet Jackson.

Comprehensive? Yes, the career highlights are covered. Revealing? Just a little more than expected as she remains a cipher by design. There's some cool archival footage like the Rhythm Nation recording session where she reveals a short fuse with producers Jimmy Jam & Terry Lewis. My takeaway from the four hours of this documentary is that the men in her life really disappointed her, and somehow she managed to avoid being bitter. For that, she deserves a lifetime achievement award.