Cillian Murphy, Mia Threapleton Joins Damien Chazelle's New Film: Cast, Plot and All We Know

Damien Chazelle only earns applause after making audiences sit with discomfort, obsession, or excess. From the bruising tempo of Whiplash to the cinematic romance of La La Land, his films live and breathe obsession. Even First Man, his most restrained work, pulsed with private grief beneath its lunar silence. Now, Chazelle is returning with a project that, by all early indications, breaks from his usual musicality and mythmaking.
And if the film’s mood is unfamiliar, the cast he is assembling is anything but ordinary.
Damien Chazelle’s new ensemble takes shape
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Mia Threapleton is the latest actor to join the ensemble cast of Damien Chazelle’s untitled drama, which already stars Cillian Murphy and Daniel Craig. The project also welcomed Michelle Williams just two weeks ago, further solidifying its prestige credentials. According to Deadline insiders, Chazelle conducted an unusually meticulous audition process for Threapleton’s role.
Threapleton’s momentum is undeniable. She recently delivered a scene-stealing performance opposite Benicio del Toro in Wes Anderson’s The Phoenician Scheme, a film that showcased her ability to modulate between deadpan restraint and emotional precision. On television, she continues to star in Apple TV+’s The Buccaneers, which has just wrapped its second season. And now she is going to light up the screens with the Oscar-winning Murphy, as per Deadline.
Beneath the casting announcements, whispers about the story suggest Chazelle may be trading spectacle for confinement.
Inside the Cillian Murphy–led drama
While details remain unconfirmed, insiders say the film is set in a prison. It also means a stark setting that would mark a significant departure from Chazelle’s previous worlds of stages, studios, and stars. Equally formidable is the talent in front of the camera.
Cillian Murphy arrives fresh from his Academy Award-winning turn in Oppenheimer, a performance that distilled decades of precise, interior acting into a career-defining moment. His presence suggests a film driven more by psychological tension than outward spectacle.

Daniel Craig, meanwhile, continues to reinvent himself beyond Bond, most recently in Netflix’s most successful Knives Out franchise, including Wake Up Dead Man: A Knives Out Mystery, where his Benoit Blanc blends theatrical flair with sharp intelligence.
Behind the camera, equally formidable forces are fueling this production.
The powerhouses behind Damien Chaselle’s new project
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Damien Chazelle’s standing as one of contemporary cinema’s most distinctive auteurs remains intact. For this new film, Chazelle once again wears multiple hats. He is writing, directing, and producing alongside Olivia Hamilton under their Wild Chickens Productions banner, with Paramount Pictures backing the project for distribution.
If this new film truly is a prison drama, it may represent Chazelle’s most inward-looking work yet. A study of control, consequence, and the cost of obsession when the music stops.
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What do you make of Damien Chazelle’s bold new direction? And does this cast signal his strongest ensemble yet? Share your thoughts below.
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Edited By: Hriddhi Maitra
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