Saw some of it and was not convinced to be hoenst.

Before you call be a whiny liberal (*joke dude!*), there were a lot of salient points in that film, but I take Mr Moorese stuff with a pinch of salt, and I can do without his attempted-tear-jerking. My main reason for posting that comment is that here in the UK, gun crime compared to the US is way down, and guess what, guns are not common place.
That and it just seems pretty darn obvious to me - dont have guns around, people dont get needlessly killed. Ipso facto.