Well I have never done a movie review before, I must say A movie should entertain you, a documentary should keep you engaged. Blood Into Wine is a Documentary, with some, I would say Fictious Scenes.
Firstly the movie Blood Into Wine, is about Maynard James Keenan Winery in Arizona which he has three labels of, Caduceus, Merkin, and AZ Stronghold. Its flow is from planting, to bottling. Its definitely entertaining, and funny. My Favourite scene was when they were talking to the wine maker Eric Glomski and talking about Heirloom Apples and Quinces a long the river bank that was pretty cool and not even about wine haha.
There was through out the movie a scene with two guys, whom I have no idea who they are, but I assume if you have watched there show [maybe internet show] you would get there style which can be funny but at the same time a little annoying so that did not totally work out. Maynard makes good use of also promoting his music, which he should, one he doesn't have to pay royalities when making a movie which is a plus, my only problem with this is he didnt play the only song I like/love from Tool which is Schism!
That being said a movie, if you like wine you should watch just because its engaging and even for people new to wine, they still explain certain aspect of wine making and wine in general. Overall Thumbs up from me!