Chloe Moretz is in talks to join Charlize Theron in the thriller "Dark Places," based on Gillian Flynn's 2009 mystery novel. In the film, Theron will play Libby Day, a woman who survives the massacre of her family. Her brother was charged as the killer, and Libby's testimony helped put him in prison. 25 years later, a group known as the Kill Club attempts to prove her brother's innocence. Moretz will play a character named Diondra,