Despite the English title ("The Cannibal Man"), this is not a film about cannibalism. The correct translation of the original Spanish title is "The Week of the Killer".
Was the first movie to use the "vomit-bag" gimmick. Theatres offered free barf bags with the tickets to increase the sales of this 'violent' film.
The early 80s UK video made the DPP's list and was successfully prosecuted, but only made the list due to it's 'cannibal' title. Apart from some slaughterhouse footage, this is not a very violent film, and would almost certainly be released uncut (apart from, perhaps, the aforementioned slaughterhouse footage) in the UK if it was submitted now.