The "Joker" star and Rooney Mara have welcomed their first child together.
This lot were partying into the wee hours after the biggest night in the film calendar.
After winning Best Actor for Joker, the star touched on animal rights, cancel culture and personal growth in his acceptance speech.
The Harriet star is the only Black actor nominated in the acting categories for the 2020 Oscars.
The British Academy Film Awards, 2020 are over, with World War I epic 1917 being the biggest winner, winning seven awards including best picture and best director. Joaquin Phoenix was named best actor with Renée Zellwegger picking up Best Actress. Rebel Wilson stole the show with Brad Pitt joking about Brexit via Margot Robbie.
"We send a very clear message to people of colour that you’re not welcome here," the Joker actor said.
Margot Robbie, Joaquin Phoenix and Renée Zellweger who attended the bash at London's Royal Albert Hall.
Phoebe Waller-Bridge, Game Of Thrones and Joaquin Phoenix were also among the night's big winners.
The presenter has apologised after mocking the Joker actor's scar during an episode of her US talk show.
While Margot Robbie has received two nominations in the same category, it's been noted actors of colour have been overlooked completely.