EXCLUSIVE: In a bombshell development, CAA has just signed Aaron Sorkin. Sorkin, an Oscar winner for The Social Network and six time Emmy winner for his series creation The West Wing, makes the move after he completed his directorial debut, Molly’s Game. That film, an STX Entertainment/eOne adaptation of the Molly Bloom memoir about her transition from Olympic skier to organizer of high stakes poker games, stars Jessica Chastain, Idris Elba and Kevin Costner.