Alex Baldwin joins the cast of “My Sister’s Keeper.” Other cast members include Cameron Diaz, Elle Fanning, Dakota Fanning. Nick Cassavetes directs the film based on Jodi Picoult novel.

Baldwin will play the attorney who represents a child (Elle Fanning) after she sues her parents for emancipation on the grounds they bred her to be a genetic match who could prolong the life of her cancer-ridden sister (Dakota Fanning). The girl’s mother played by Diaz is a former trial lawyer and represents herself in court, according to Variety.