Moore has had programmes on over here for years, well before those bozo's in the US who get so wound up about him even knew his name.
I remember in these shows he had a fair amount of bile for Clinton too.
Bowling For Columbine, though often clumsy and over-wought, wasn't even really about lax gun laws, Moore was a teenage shooter, a NRA member, what I think was was trying to get at in that film was what is it in US society that causes such a toll of murder, most of it gun related.
He did demonstrate that Canada, with quite liberal gun laws too, has per population, a murder rate a fraction of the US.
Moore seems to think (with his scattergun approach it can be sometimes hard to tell) that attitudes in US society are the prime cause, basically he contends, large elements of society really don't give a shit about anyone, and it's a top down process.
As for his latest works, well much of what he highlights, like GWB letting a bunch of Saudis fly out of the US during the post Sept 11th shutdown, Bush links with Saudis etc, is nothing new, been reading about this sort of stuff for a couple of years, well you can outside the US it seems!
I do notice that many of Moore's detractors, like so much else in the US it seems now, resort to personal abuse rather than debate the points he is trying to make, and he does slip up, I saw some howlers in Bowling For Columbine, but maybe the broad thrust of what he is trying to say is harder to argue with.
The idea that any documentary would match a popular movie series aimed at such a wide audience as the Harry Potter series (which the religious cracker in-breds don't like either as they think it's satanic, like those backwards played Judas Priest records) is a bit silly.
Though in recent times cinema documentary's have been much more popular, like the one on McNamara and Capturing The Friedmans, perhaps a reaction against the dumbed down TV
Point is, despite Disney, (was Jeb Bush pressuring them?) he has got distribution.