Mariah Carey plays a social worker in the upcoming Lee Daniels’ movie Precious: Based on the Novel “Push” by Sapphire. This is the official trailer and by the looks of it, the film is going to live up to this touching book. Go read it, if you have’nt already! The movie, which earned the Grand Jury and Audience awards at Sundance, co-stars Moâ€™Nique, Paula Patton, Sherri Shepherd, Lenny Kravitz, and Gabourey Sidibe. The Lionsgate film opens in theaters on Nov. 6.