Twelve-year-olds might get a charge out of this purportedly daring documentary celebration of the F-word, although it never occurs to filmmaker Steve Anderson that it might be fun or even genuinely lewd to interview kids on the subject. Instead he grants screen time to a predicable roster of pro-obscenity celebs—Janeane Garofalo, Ice-T, Bill Maher, the late Hunter S. Thompson—as well as some senior admirers of the expletive such as (newsflash!) ABC’s alarming Sam Donaldson. Other talking heads, one or two of them with Ph.D.’s, bid to make the doc sociological, but aside from the historically worthy identification of General George S. Patton as a pioneering potty mouth, the film contains little or nothing in the way of surprise.