Costume romp The Favourite was the biggest victor at the BAFTAs on Sunday, taking seven awards, but Netflix's black and white film Roma picked up the Best Film prize, as well as Director, at Britain's top movie honors.
Colman - who rose to fame playing Sophie Chapman in Peep Show - paid tribute to her "classiest and coolest" fellow co-stars in the film, Rachel Weisz and Emma Stone, and said in her eyes, the award was for all three of them as leads, and that she would "scratch in" their names on the Bafta statuette too.
Cuaron thanked Netflix for getting behind the film, which is in Spanish and has garnered 10 Oscar nominations, including for Best Picture, a major recognition for the streaming service.
Lady Gaga, Lukas Nelson and Bradley Cooper were recognised in the Original Music category for A Star Is Born soundtrack.
"Didn´t we have an extraordinary time?" The film also won the Sound prize.
Rami Malek won leading actor for "Bohemian Rhapsody", and Mahershala Ali won supporting actor for "Green Book".
Looking visibly shaken as she walked up to the stage of London's Royal Albert Hall, the actress - who played Queen Anne in The Favourite - clutched a piece of paper with her notes on what to say.
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"Black Panther" won the best visual effects.
BlackKklansman won the prize for Best Adapted Screenplay and Spider-Man: Into the Spider-Verse scored the Best Animated Film trophy.
Last year´s ceremony at the Royal Albert Hall saw Hollywood stars paint the red carpet black in solidarity with the #MeToo movement.
This referred to an article in the USA magazine The Atlantic detailing sexual misconduct allegations that included underage sex.
Singer denies the story and the film itself was still up for the award, although it failed to win it.
BAFTA also recognized Rami Malek as Best Actor in "Bohemian Rhapsody" where Malek played the iconic rock star Freddie Mercury.
It won out against "Lord of the Rings" director Peter Jackson´s "They Shall Not Grow Old" in which silent black-and-white footage from World War I was transformed into a 3D colour movie.