Will Poulter, Ben O’Toole, and Jack Reynor have joined the ensemble for Kathryn Bigelow’s upcoming film about the 1967 Detroit Riots.

Bigelow is directing with Mark Boal penning the script. John Boyega recently joined the ensemble as well.

Megan Ellison’s Annapurna Pictures is financing with Bigelow and Boal producing along with Ellison, Matthew Budman, and Colin Wilson. Greg Shapiro will executive produce.

The crime drama is set against the backdrop of Detroit’s devastating riots that took place over five haunting summer days in 1967. Although no studio is yet attached, producers are targeting a release in 2017, the 50th anniversary of the riots.

Character descriptions are being kept under wraps. While this is considered an ensemble piece, Poulter, O’Toole, and Reynor are expected to have the most screen time in the movie.

After his breakout role in “We’re the Millers,” Poulter has become more drawn to adult-driven material with awards-season draw, recently appearing in Leonardo DiCaprio’s “The Revenant,” as well as the upcoming Brad Pitt dark comedy “War Machine.” Poulter also has a strong following as a member of “The Maze Runner” franchise.

Discovered by Michael Bay on “Transformers: Age of Extinction,” Reynor has recently been looking less at commercial fare and more at prestige projects. Reynor received strong reviews for his role in John Carney’s “Sing Street” and can be seen next in Ben Wheatley’s crime thriller “Free Fire” and Jim Sheridan’s drama “The Secret Scripture,” both of which could make festival runs this fall. He also has the movie adaptation of the novel “HHhH” bowing next year.

Considered the discovery of the ensemble, O’Toole is poised to have a big year ahead of him with Mel Gibson’s highly anticipated “Hacksaw Ridge,” which is premiering at the Venice and Toronto film festivals and expected to be a major player this awards season. He most recently appeared in “The Water Diviner” with Russell Crowe, and also has “Pirates of the Caribbean: Dead Men Tell No Tales” opening next summer.

All three are represented by WME. Poulter is also repped by Hamilton Hodell, O’Toole is repped by United Management, and Reynor is repped by Macfarlane Chard.