Bowling for Columbine: Fact or Fiction?

I admit upfront: I have not see the movie yet, but I do remember Michael Moore making an a$$ out of himself at the Oscars with contraversial statements in his acceptance speech. I also recall booing and hissing from the audience while the Oscar Police cut him off with loud music. Anyhow, the reason I'm writing about this is because my friend Scott referred me to a website which suggests that the movie "Bowling for Columbine" is not a documentary (by the Academy's own definition) and thus should not have won an Oscar for that category. **POLITICAL RANT WARNING** I'm about as antigun as they come, so power to anybody who challenges the NRA. But my feelings towards firearms aside, if it's true that "Bowling for Columbine" is not a documentary, then I agree that Moore should get his Oscar revoked. Otherwise, that would be like "The Pianist" winning an award for "Best Animated Film". Ooo... shouldn't have used that example since I have lots (of bad things) to say about Roman Polanski...