We will offer the requisite spoiler warning here for anyone who hasn't read the books and who isn't already familiar with the plot. Allegiant finds Tris (Shailene Woodley) trying to get to the heart of the mystery surrounding the future society she has been standing up against and the factions at its core. Jeff Daniels (Looper) signed recently to play David, the leader of the Bureau of Genetic Welfare, which originally created the various factions.
Towards the end of the book, Tris starts to learn that David and the actions of his team (which apparently includes Skarsgård's character, possibly Matthew from the book) might not exactly have everyone's best interests at heart.
With Noah Oppenheim (The Maze Runner) writing the screenplay, Robert Schwentke (RED) is set to start cameras rolling this month. Unusually, it appears that he won't be making both of the final entries at once, and Lionsgate may go with another director for the second half. The film should be with us on 18 March next year.
Skarsgård, meanwhile, has worked on Lee Tamahori's (Next) Emperor and in Alison Eastwood's (Rails & Ties) latest, Battlecreek.