Joaquin Phoenix and fiancee Rooney Mara slated to star in director Lynne Ramsay’s new film Polaris

Nearly a decade after meeting on the set of Spike Jonze’s 2012 film Her, engaged actors Joaquin Phoenix and Rooney Mara will star alongside each other for the third time.

Director Lynne Ramsay revealed in an interview with El Espanol that the 46-year-old Phoenix and the 36-year-old Mara will both star in her new film Polaris.

Phoenix and Mara met on the set of Her and started dating in 2016, before starring alongside each other in 2018’s Mary Magdalene. 

Couple: Nearly a decade after meeting on the set of Spike Jonze's 2012 film Her, engaged actors Joaquin Phoenix and Rooney Mara will star alongside each other for the third time

Couple: Nearly a decade after meeting on the set of Spike Jonze’s 2012 film Her, engaged actors Joaquin Phoenix and Rooney Mara will star alongside each other for the third time

Revealed: Director Lynne Ramsay revealed in an interview with El Espanol that the 46-year-old Phoenix and the 36-year-old Mara will both star in her new film Polaris

Revealed: Director Lynne Ramsay revealed in an interview with El Espanol that the 46-year-old Phoenix and the 36-year-old Mara will both star in her new film Polaris

No plot details were given for Polaris, though Ramsay and Phoenix first worked together in the 2017 thriller You Were Never Really Here.

Ramsay revealed the casting news during a trip to the Cinema Jove film festival, where she was awarded the Luna de Valencia Award for her career achievements.

‘He’s crazy, but he’s the best actor I’ve ever met. Everything he does on the set has a reason,’ Ramsay said in an interview.

Plot: No plot details were given for Polaris, though Ramsay and Phoenix first worked together in the 2017 thriller You Were Never Really Here

Plot: No plot details were given for Polaris, though Ramsay and Phoenix first worked together in the 2017 thriller You Were Never Really Here

‘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,’ she added.

The couple got engaged in July 2019, welcoming their first child, River, named after Joaquin’s late brother, in September 2020.

Phoenix is coming off his Oscar-winning portrayal of Arthur Fleck in the critically-acclaimed Joker in 2019, which was the last time he was on the big screen.

Difficult: '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,' she added

Difficult: ‘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,’ she added

Engaged: The couple got engaged in July 2019, welcoming their first child, River, named after Joaquin's late brother, in September 2020

Engaged: The couple got engaged in July 2019, welcoming their first child, River, named after Joaquin’s late brother, in September 2020

Oscar: Phoenix is coming off his Oscar-winning portrayal of Arthur Fleck in the critically-acclaimed Joker in 2019, which was the last time he was on the big screen

Oscar: Phoenix is coming off his Oscar-winning portrayal of Arthur Fleck in the critically-acclaimed Joker in 2019, which was the last time he was on the big screen

He will next be seen in writer-director Mike Mills’ (Beginners) C’Mon C’Mon, starring alongside Gaby Hoffman and Jaboukie Young-White.

He is also attached to return as Arthur Fleck in a sequel to Joker, though it isn’t clear when that will go into production. 

Phoenix won his first Oscar for his critically-acclaimed performance in Joker, playing the iconic DC Comics villain.

Coming soon: He will next be seen in writer-director Mike Mills' (Beginners) C'Mon C'Mon, starring alongside Gaby Hoffman and Jaboukie Young-White

Coming soon: He will next be seen in writer-director Mike Mills’ (Beginners) C’Mon C’Mon, starring alongside Gaby Hoffman and Jaboukie Young-White

He had previously been nominated three other times, in 2001 for Gladiator, 2006 for Walk the Line and 2013 for The Master. 

He also took home the Golden Globe, BAFTA and Screen Actors Guild awards for portraying Arthur Fleck/Joker in the Warner Bros. film. 

Mara hasn’t been seen on the big screen since Mary Magdalene in 2018, but she stars in director Guillermo del Toro’s Nightmare Alley, in theaters December 3. 

Nominated: He had previously been nominated three other times, in 2001 for Gladiator, 2006 for Walk the Line and 2013 for The Master

Nominated: He had previously been nominated three other times, in 2001 for Gladiator, 2006 for Walk the Line and 2013 for The Master

Globe and Guild: He also took home the Golden Globe, BAFTA and Screen Actors Guild awards for portraying Arthur Fleck/Joker in the Warner Bros. film

Globe and Guild: He also took home the Golden Globe, BAFTA and Screen Actors Guild awards for portraying Arthur Fleck/Joker in the Warner Bros. film

Coming soon: Mara hasn't been seen on the big screen since Mary Magdalene in 2018, but she stars in director Guillermo del Toro's Nightmare Alley, in theaters December 3

Coming soon: Mara hasn’t been seen on the big screen since Mary Magdalene in 2018, but she stars in director Guillermo del Toro’s Nightmare Alley, in theaters December 3