Cameron Diaz will star in My Sister's Keeper, a Nick Cassavetes-directed adaptation of the Jodi Picoult novel for New Line Cinema, according to Variety.

The actress will play a former defense attorney who returns to the courtroom to defend herself and her husband when they are sued by their 13-year-old daughter for emancipation. The girl was conceived as a genetic match with the hope she could prolong her cancer-ridden sister's life.

The drama was written by Jeremy Leven and shooting will begin early next year.