Joaquin Phoenix, Emma Stone and more have joined Eddington.

The upcoming Western from filmmaker Ari Aster is set to start production this month, and the director has brought together an all-star cast for the blockbuster.

Film studio A24 wrote on X (formerly Twitter): "Welcome to Eddington.

"Ari Aster's contemporary western starring Joaquin Phoenix, Pedro Pascal, Emma Stone, Luke Grimes, Austin Butler, Deirdre O'Connell, Michael Ward and Clifton Collins Jr. is coming soon."

[embed]https://twitter.com/A24/status/1767626789658951789[/embed]

Plot details are being kept under wraps, but the movie — which is expected to be a Western Noir comedy with Phoenix in the lead role — will follow a small-town sheriff in New Mexico who is dreaming of bigger things in life.

Aster will write, direct and produce the project alongside Lars Knudsen under the Square Peg banner.

It means the film marks the sixth collaboration between Square Peg and A24, following Hereditary, Midsommar, Dream Scenario and Beau Is Afraid, while Death of a Unicorn will be released before Eddington.

Aster previously told the New York Times newspaper that his next film would "almost certainly" be a Western, as he teased that he and Phoenix were working on a new project together.