[s]Disney Controversy Documentary on You Tube

Out of curiosity, what did the person’s voice sound like? Did he sound more hyper and upbeat? Did he sound dark and mysterious?

If Micky Mouse Monopoly is indeed the documentary in question, I did find the distributor (I say "found," but really they're named at the end of the YouTube clip broncosman posted), named the Media Education Foundation, or MEF.  And they do have all documentary films they have produced/acquired for distribution for sale, but only to educational institutions like schools.  And in any case, even if the general public could purchase any of the films, they cost several hundred dollars just for a DVD copy, so are definitely way overpriced and not easily obtainable.  However, this means that there's a chance that there are at least a few schools, museums, library, or some other place of education somewhere might have a copy that could be asked about.