Over the course of two Hunger Games films, Katniss Everdeen (Jennifer Lawrence) has been unflinchingly confident. But in Mockingjay—Part 1, the teen heroine suffers a bout of age-appropriate angst as she reluctantly becomes a rebel leader. ''It's a very confusing, conflicted, complicated time for Katniss,'' says Francis Lawrence, who also directed 2013's Catching Fire. ''She's distraught, confused, angry.'' He won't reveal how he's divided the final book in Suzanne Collins' trilogy, but expect the addition of power-hungry President Alma Coin (Julianne Moore) to keep tensions high. ''There's more of her than in the book,'' he notes.