The "perfect warrior" Four, played by Theo James takes center stage in a new behind-the-scenes featurette for Divergent, which arrives in theaters March 21. This adaptation of Veronica Roth's novel is set in a world where young men and women much choose one of five factions to live the rest of their lives under. When Tris Prior (Shailene Woodley) learns she is a "divergent," someone that doesn't fit within these groups, she is forced to take refuge in the Dauntless faction, which represents courage and bravery. Four is one of the Dauntless leaders, who, according to director Neil Burger, has secrets he is trying to hide, and is wary of anyone trying to get close to him. Veronica Roth revealed how thrilled she was when he was cast, and that he has done more with the character than she could have dreamed of. We also get behind-the-scenes footage of Theo James' stunt training, and hear from the actor himself and co-star Shailene Woodley in this new video. Learn more about this pivotal character before Divergent hits theaters in just a few short weeks.