The Hunger Games and Twilight are no more. Ender’s Game, The Host and The 5th Wave never really took off. That leaves the Divergent franchise flying Hollywood’s Young Adult flag – which looks to be at half-mast, judging by this latest adaptation based on Veronica Roth’s best-selling trilogy. Allegiant, taken from the first half of Roth’s final book of the same name, is an underwhelming encounter that feels as drab as the ruinous, walled-off Chicago setting of the preceding films.

“Miracle” heroine Tris Prior (Shailene Woodley) concluded the last movie, Insurgent, set in a society divided into four factions, by discovering this segregation was all part of a social experiment. Now it’s time to escape beyond the confines of the electrified battlements, along with love interest Four (Theo James), sibling Caleb (Ansel Elgort) and comrades-in-arms Peter (Miles Teller) and Christina (Zoë Kravitz).

As it turns out, scaling that wall is about the most exciting thing they manage in two hours of tedium. On the other side is a toxic wasteland that rains blood and, behind an invisible wall, the Bureau of Genetic Welfare, run by Jeff Daniels’ mildly creepy David (we know this because he buttons his collar up to the top, without a tie).