If your 13 year old child actually finds politics and the economy interesting, then by all means do not stop them from watching this movie based on the language. The very few F-words do not exactly stick out, and are used in no offensive context.
As for how good it is, this documentary seems to provide a realistic outlook on America's economic situation and how it has evolved over the decades. It provides an interesting look at just how greedy the capitalistic economic structure can be, and I'd say it's definitely worth a watch.
fascinating shocking doc is stndard micheal moore material
those familiar with micheal moore's films know what to expect here but even i was shocked by the carefull level of crafting that went into the movie and how they attacked both sides there are some relatively funny moments to go along with ths hocking moments such as the life insurance policies taken out on dead people.some of the funny bits include the part when he compares the coutrywide commercials with the prettylady as being quote " the same offer the mafia gives you" the film sometimes goes on with to much but all his films do that so grade A-