her, and as an actress who from the moment we see her sitting in a field making straw dolls in "12 years a slave," or declaring her humanity by a sliver of soap, took the personal narrative of solomon northrup and made it her film. but this is what lupita told "essen "essence" magazine as she accepted one of many awards at the seventh annual black women of hollywood luncheon just last week. she read from a letter from a young black girl. "dear lupita," it reads, "i think you're really lucky to be this black but yet this successful in hollywood overnight. i was just about to buy cream to lighten my skin when you appeared on the world map and saved me." lupita said she never imagined her first big job out of yale drama school would mean so much to someone, and here's how she continued. >> i remember a time when i, too, felt unbeautiful. i put on the tv and only saw pale skin. i got teased and taunted about my night-shaded skin. and my one prayer to god, the