The new trailer for "Divergent," Summit Entertainment's adaptation of Veronica Roth's popular young adult novel series, debuted on Wednesday, showcasing the film's narrative set-up and genre-bending thrills. This one's a romance, but also a post-apocalyptic thriller, an action movie, a coming-of-age story and the type of film that finds room for trains and ferris wheels. "I don't want to be just one thing," Four (played by James Franco lookalike Theo James) says to Tris (Shaliene Woodley) in reference to the factions that citizens are divided into after turning 16. "I want to be brave and selfless and intelligent and honest and kind." Watch below; "Divergent" is out on March 21, 2014.