toadfrog, Moore wasn't trying to link the parts about Lockheed in the film to the Columbine shootings. That is a major piece of disinformation the right wing is trying to put out about the film.

The film's title does refer to Columbine, but the film itself isn't about just Columbine. It is about the culture of gun violence in the US, which Moore attempts to link (not very successfully in the film, IMO) to the militaristic culture of the US that has created the largest military machine in history.

That is a large part of the problem with these idiots trying to destroy Michael Moore. Very few of them have seen the film. And if they did see the film, they wouldn't even grok the basic premise of it. The premise of the film was one man's study of the culture of gun violence in the US and military violence around the world, examined through the lens of his own home state. In other words, each vignette in the film has links of some kind to the state of Michigan. That is a major piece of the plot that never seems to get talked about when people discuss the film. If you see the film, which is well worth seeing despite it's flaws, you will see immediately that Moore uses this plot device to link what would otherwise seem (to those who don't see the links already) to be disparate threads.