Having recently watched the Grant Gee "Joy Division" documentary, I feel it is not just a great companion piece to "Control", but more so, a better companion piece to the "New Order story". Both are documentaries, contain actual interviews with the band, and includes the same kind of editing, weirdly/poetic/artsy feel to them.
I can't wait to watch them back to back when I get my DVD of the documentary from Amazon.
Another random thought while on the matter:
As much as "Control" was about the story of Ian and Joy Division, I am going to say again.. we need (OK, maybe 'want' is a better word) a New Order movie. New Order's mythological rise from Joy Division's death is a great story. Full of drama (death, divorce, drugs, rock n' roll, the Hacienda) itself would make a good movie as well.
And before anyone says it, no, I don't think "24 hr party people" does it.