Slashdot | Convert Movies From R to PG13 to PG On The Fly Roger Ebert: The fundamental problem with the MPAA is that it avoids making any kind of common-sense evaluation of a film, and simply counts f-words and evaluates nudity. ''Waking Life,'' one of the most affirmative and challenging films I can imagine for smart teenagers, gets the R rating, while the thriller ''Domestic Disturbance,'' which shows a small child exposed to a murder, an incineration, the beating of his mother (leading to a miscarriage) and the beating of his father, after which the kid himself causes an electrocution, gets the PG-13--presumably because there is no nudity and the language stays below the cut-off point. What sane parent would prefer their teenager to see ''Domestic Disturbance'' rather than "Waking Life''?