I gave this movie a 7 (hesitated with 8) because it is a good film. It is funny, entertaining, it shows things that are true. Something that is nice is that it seems also that Moore tries to show as many countries as possible, even countries that some people might feel are "forgetable", etc.
The reason why I do give a lower mark is that it is a film that is really made for a US audience. Having spent a good deal of time in North America I can completely understand why he tries to make it so that the ideas shown and expressed in the film are as "American" or "American born" as possible, but when you're from someplace else, and when you know more about history or such things in general, it seems just a bit annoying that they try to make some ideas that are pretty much universal, or just not American, as American as possible. The ending is also quite cliché, but it just reflects and intensifies the previous comment. it's actually because of the very-patriotic-to-get-republicans-to-listen ending that i decided to give this movie a7 instead of an 8.
for non us viewers I would say that you can just skip the last 15 minutes, but that the rest is great
