The producer of Pan's Labyrinth, the Oscar-winning film that partially delves into the world of abuse, may in fact have done some abusing of her own. A lawsuit was filed in Manhattan federal court yesterday against Frida Torresblanco. Her nanny, Angelica Hernandez, claims she was treated like a virtual slave. Hernandez (who was hired in February 2007) worked up to 150 hours a week for seven months in the producer's Tribeca apartment and brought home......