If you think that a bunch of 1990's boy-band singers getting together to make a zombie/western movie in 2016 was a bad idea, you'd be right. It looks and sounds exactly like what you'd imagine; just awful.
Looking at the disparity in the votes between male and female on this one makes me think a large number of women, who were about 14 in 1995, checked in to scope out their old crushes, and they still have a thing for them (it would explain all the "10" votes for this). Nothing wrong with old infatuations, but I think their fond memories of these guys had them overlooking some very big flaws in Dead 7.
A good screenplay is the basis for any good film, and good actors are needed to get those words effectively on screen. This movie has neither of those things. In fact, this is just tough to watch all the way through. There is nothing here to draw your interest. No sympathetic characters, no witty banter, not even any fancy CGI. I'm not a big fan of desaturated color in films either, and Dead 7 really overdoes it. If you want to take that much color out of a film, just make a black and white movie.
The point is, unless you were a huge fan of the Backstreet Boys, 'NSync, O-Town or 98 Degrees, you're just wasting your time watching this.