'Precious: Based on the Novel...'

Oprah Winfrey, left, and Tyler Perry, executive producers of 'Precious: Based on the Novel 'Push' by Sapphire,' pose together at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009. (AP/Chris Pizzello)

Mariah Carey, right, a cast member in 'Precious: Based on the Novel 'Push' by Sapphire,' is led into Grauman's Chinese Theatre by husband Nick Cannon at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009. (AP/Chris Pizzello)

Gabourey Sidibe, star of 'Precious: Based on the Novel 'Push' by Sapphire,' poses at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009 (AP/Chris Pizzello)

Gabourey Sidibe, right, star of 'Precious: Based on the Novel 'Push' by Sapphire,' poses with actor Will Smith at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009. (AP/Chris Pizzello)

Paula Patton, left, and Gabourey Sidibe, right, cast members in 'Precious: Based on the Novel 'Push' by Sapphire,' pose with actor Will Smith at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009. (AP/Chris Pizzello)

Mo'Nique, right, a cast member in 'Precious: Based on the Novel 'Push' by Sapphire,' poses with her husband Sidney Hicks at the premiere of the film at AFI Fest 2009 in Los Angeles, Sunday, November 1, 2009. (AP/Chris Pizzello)