Charlize Theron, who won an Oscar in 2004 for her leading role in "Monster," is presenting.
Oscars 2013: Jessica Chastain, Jennifer Lawrence, Quvenzhane Wallis Arrive on Red Carpet (Photos)
Oscar nominees and Hollywood stars, including Jessica Chastain, Amy Adams and Quvenzhané Wallis arrive on the red carpet at the 85th Annual Academy Awards
