The Divergent Series: Allegiant is not a film.
The Divergent Series : Allegiant is a 2016 American action adventure film directed by Robert Schwentke with a screenplay by Bill Collage , Adam Cooper , and Noah Oppenheim . It is the first of two cinematic parts based on the novel Allegiant , the final book in the Divergent trilogy by Veronica Roth , and the third installment in The Divergent Series . This led to budget cuts on the fourth and the possibility that the final installment in the series , Ascendant , would be released as a TV movie instead of a theatrical one .