Kirby Dick's exposé of the MPAA's Classification and Ratings Administration (CARA), that powerful, supersecretive group that decides a movie's rating, was born of good old-fashioned ire. ''I've been outraged for decades,'' says Dick, who sees the board as a Hollywood hand puppet that makes sure that ''studio films get less restrictive ratings than independent or foreign films.'' To Dick, that amounts to censorship and, assisted by a plucky private eye, he strives to blow the lid off these ''double standards.'' He also unmasks all 10 members of the ratings board at the time — identities that were previously kept under the tightest of wraps. ''Things really need to change,'' he says.