Ari Aster's next film is assembling a star-studded cast. On Tuesday, it was announced that Joaquin Phoenix, Emma Stone, Austin Butler, Pedro Pascal, Luke Grimes, Deirdre O'Connell, Michael Ward, and Clifton Collins Jr, have all joined the cast of Eddington, Aster's upcoming "contemporary western". The announcement was made on social media by A24. You can check it out for yourself below.