Joaquin Phoenix and Rooney Mara are attached to star in Polaris, the next feature from acclaimed writer and director Lynne Ramsay. The filmmaker revealed the news in an interview with El Espanol (via TheFilmStage) while attending the Valencia International Film Festival to collect the Luna de Valencia award, which will mark her second movie with Phoenix after 2017's psychological thriller You Were Never Really Here.

Any plot details, or even a shred of information beyond that is virtually non-existent at this stage, but based on how their last creative partnership turned out, the prospect of Ramsay and Phoenix reuniting is a massively exciting one, and Ramsay had high praise for the actor in anticipation of their next project.

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Image via Amazon Studios

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This is what Ramsay had to say about Phoenix:

"He’s crazy, but he’s the best actor I’ve ever met. Everything he does on the set has a reason. It’s much more difficult when you come up with an original idea like this, but it’s impossible not to get excited when you’re preparing a movie with Joaquin."

New work from Ramsay is sadly a rare treat, with the Morvern Callar and We Need to Talk About Kevin director having only helmed four movies in the space of 22 years, all of which drew widespread praise and cemented her as a unique and singular talent with an eye for uncompromising emotion and often brutal reality.

Phoenix and Mara have been out of the spotlight recently, with the engaged duo having focused their attention and energy on family life. The former hasn't been seen onscreen since winning an Academy Award for Best Actor in Todd Phillips' Joker, while Mara's last acting credit came in Garth Davis' Biblical drama Mary Magdalene, which was released in the spring of 2018.

However, both are on their way back with a vengeance, boasting a slew of exciting-sounding projects between them. Phoenix has Mike Mills' C'mon C'mon in the can and is currently shooting Ari Aster's Disappointment Blvd., while he boarded Ridley Scott's historical epic Kitbag last year as Napoleon Bonaparte, all while talk of a Joker sequel continues to bubble away in the background.

Mara, meanwhile, has Guillermo del Toro's Nightmare Alley coming to theaters in December, and joined the cast of Sarah Polley's literary adaptation Women Talking just a few days ago. Factor in those busy schedules and combine it with Ramsay signing on to tackle Stephen King's The Girl Who Loved Tom Gordon last November, as well as the feature length spin on a mystery Margaret Atwood short story she's been teasing, then it looks like Polaris might not be happening for at least a little while yet.

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