Naomi Watts has signed on to join the next three films in Lionsgate's Divergent franchise. Naomi Watts is joining the cast of Divergent sequel Insurgent as Evelyn, leader of the Factionless. Watts' deal calls for to co-star in the futuristic franchise's two final movies, which are based on Veronica Roth's YA novel Allegiant, the final book in the Divergent trilogy. Watts will jump right to Insurgent, which began shooting last week in Atlanta. Shailene Woodley, Theo James, Ansel Elgort, Kate Winslet and Miles Teller -- who all appeared in Divergent -- return for the sequel. Watts joins Octavia Spencer as new additions to the cast. After Insurgent wraps in September, Watts will move on to Sea of Trees, which will take her through November. The in-demand actress is mulling a number of films after that. Robert Schwentke, who replaced Divergent helmer Neil Burger, is directing Insurgent from a screenplay written by Brian Duffield and Akiva Goldsman. Insurgent