"Precious is a film that makes you think, ''There but for the grace of God go I.'' Owen Gleiberman, Entertainment WeeklyThat is so true. The only difference between me and a heavyset sexually-abused African-American teenage girl living in Harlem is, well, that I don't happen to have been born African-American, or a girl, have never been sexually abused, am a little on the skinny side and don't live in Harlem. But apart from that the chances of my life turning taking any one of those turns are, of course, extremely high. What is Gleiberman talking about?