Pictures' "Grind," skateboarders possess body-temperature IQs, are either dorks or preening egomaniacs and have zero social skills. What the problem comes down to is a group of filmmakers making misguided choices in an effort to broaden the movie's demographics beyond those who attend X Games. Borrowing liberally from the Farrelly brothers/"American Pie" school of gross-out high grossers, director Casey La Scala and writer Ralph Sall graft a relentless barrage of crude bathroom humor onto an otherwise innocent tale of three buddies desperate to join the pro skating circuit.

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