Fantastic documentary. It shows portions of the comic book world, behind the scenes that you may or may not have known about until this movie hit the streets. It's a bit like a primer to the less known, forward thinking creator producers that are/were shaping the face of comics.
The chronological/sequential time-line of the show gives you an interesting perspective on the state of comics in all their forms, focusing on the most important aspects of the industry at the time. I also like the way the big 2 are almost a side bar, with comments made about changes and relevant timely issues (Frank Miller talks Batman about the pivotal "Dark Knight Returns")
I highly recommend this movie to anyone interested in sequential art or documentaries for that matter...