There's a great one that came out recently called The Death of Superman Lives about Tim Burton's attempt to reboot Superman in the late 90s which I haven't had a chance to see yet.
I guarantee you wont be disappointed.I've never even heard of American Movie or Coven, thanks for the heads-up, I'll check that out.
Worth checking out 'Interstellar' too; how they spent a great deal of time looking for the farm location, growing the corn,building the house, as well as detailing all the practical space craft as 'big-atures' in order to get as much as possible shot 'in-camera'. Really interesting documentary.
Very interesting list. I have most of those Blurays/DVD boxsets and I think i have looked at a few of them before. Must go back now and rewatch those documentaries again. Like many suckers I have both the DVD and Bluray boxsets of Starwars and can't remember if i saw the documentaries in full before.
Another very interesting one I saw which isn't on the list was the making of "The Shining" and the incredible lengths Kubrick went to recreate the hotel and maze for the film (which were all sets amazingly - the outside of hotel in beginning was real hotel somewhere). It also documents how he invented "steadicam" during this film to do the corridor scenes with camera following child on bike.
Also another very interesting making-of was the one for "The Thing". As far as I remember they actually found some remote snow covered place to do the shoot for real, and crew was up there for months.
Both The Thing and Shining documentaries are on the Blu-rays.
pretty sure it was garrett brown who invented steady cam when filming the original rocky film.