EXCLUSIVE: Jason Hall has signed with UTA. Hall is the actor-turned screenwriter whose breakthrough came with American Sniper, for which he was nominated for an Oscar. He has since drawn such plum writing jobs as drafting a film about Rasputin as a potential starring vehicle for Leonardo DiCaprio for Warner Bros and Appian Way. He also made his directorial debut on Thank You For Your Service, an adaptation of the David Finkel book for Amblin Entertainment that touches on the PTSD themes prevalent in American Sniper. That film has an ensemble cast that includes Miles Teller, Amy Schumer, Haley Bennett and Keisha Castle-Hughes. Hall had been repped by CAA.