Molly's Game is a 2017 American crime drama film written and directed by Aaron Sorkin (in his directorial debut), based on the memoir Molly's Game: From Hollywood's Elite to Wall Street's Billionaire Boys Club, My High-Stakes Adventure in the World of Underground Poker by Molly Bloom. It stars Jessica Chastain, Idris Elba, Kevin Costner, Michael Cera, Brian d'Arcy James, Chris O'Dowd, Bill Camp, Graham Greene, Claire Rankin, Joe Keery, and Jeremy Strong. The film follows Bloom (Chastain), who becomes the target of an FBI investigation of the underground poker empire she runs for Hollywood celebrities, athletes, business tycoons, and the Russian mob.