'Scarface' leaves its mark on an admiring audience 09/28/03 Clint O'Connor Plain Dealer Reporter So you've got a movie considered so violent, foul-mouthed and drug-ridden by the ratings board at the Motion Picture Association of America that members stick it with an X. The movie studio goes bonkers, because an X is really bad for the box office. What do you do? If you're Brian De Palma, you cut the film and resubmit it to the MPAA. He did, and they gave it another X (now called NC-17). He cut it again. Again he received an X. Three X's, and...