The Banshees of Inisherin has scooped four gongs at the Baftas, with Barry Keoghan and Kerry Cordon winning the awards for supporting actor in both categories.
Martin McDonagh won original screenplay for the dark comedy, which also won outstanding British film.
All Quiet on the Western Front won the award won for adapted screenplay, best cinematography, film not in the English languageand best sound at the star-studded ceremony on Sunday night.
And director Edward Berger scooped the gong for best Director - making it six wins for the German film.
Guillermo del Toro's Pinocchio won the Bafta for animated film, while Carey Mulligan was incorrectly announced as the winner of the supporting actress award after a translation gaffe while deaf actor Troy Kotsur was presenting.
Oscar-winner Kotsur was delivering the announcement by sign language before a miscommunication resulted in Mulligan's name being called for her performance in She Said.
The announcer quickly corrected the call and announced The Banshees Of Inisherin star Kerry Condon as the winner.
Meanwyile, the Bafta for documentary was awarded to Navalny.
Odessa Rae paid tribute to investigative journalist Christo Grozev who could not be at the ceremony due to "a public security risk".
Bafta chairman Krishnendu Majumdar opened the film awards by paying tribute to the late Queen and welcoming the the Prince and Princess of Wales, who are attending in person for the first time in three years.
Richard E Grant, who is presenting the event, then featured in a pre-recorded sketch in which he took advice from US actor and friend Steve Martin about how to present an awards ceremony - before arriving at the Royal Festival Hall in Batman's armoured Batmobile.
Throwing off his cape, he apologised for his late arrival but added: "What could be more British than a delayed train."
Kate paired a white floor-length Alexander McQueen dress, which she has worn previously, with black gloves and gold earrings.
They were greeted by crowds of fans outside the venue, some of whom shouted “we love you Kate” as the couple walked inside.
Jamie Lee Curtis and Vick Hope were among the first guests to hit the red carpet at the Baftas in London.
Curtis, who is nominated for best supporting actress for her role in Everything Everywhere All At Once, arrived at the Royal Festival Hall wearing a black blazer and cream silk skirt.
She also wore a blue ribbon to show support for refugees and displaced people around the world. Colin Farrell, Cate Blanchett, Paul Mescal and Angela Bassett were also brandishing the £WithRefugees ribbon.
Radio DJ Hope, who is co-hosting the official red carpet coverage, dressed in a semi-sheer cobalt blue fitted dress paired with a diamond necklace.
Sheila Atim opted for a metallic dress featuring matching gloves, completing the outfit with diamond jewellery.
She told the PA news agency that working with Viola Davis on The Woman King was a “real dream” as she could learn from the US actress’s professionalism.
Atim and Davis are nominated for Bafta awards in the rising star and leading actress categories respectively.
“Working with Viola, it’s great because she’s an active actor, she wants to collaborate,” she said.
“So even though she is Viola Davis, she doesn’t see herself that way. You’re working with a colleague and that’s a real dream because then there’s like a real creative generosity there.”
Atim said Davis did not necessarily give her any advice but added: “I think the way she carried herself was my advice, because she’s somebody who’s been working for longer than me and so the way she moves, she carries that experience in her professionalism.”
Also among the early arrivals on the carpet were the production team behind Marcel The Shell With Shoes On, which is nominated for best animated film.
They posed for pictures with a replica of the one-inch shell that stars in their quaint stop-motion feature.
Northern Irish actor Seamus O’Hara told the PA news agency the awards attention on his film An Irish Goodbye has been “absolutely magic”.
The film, which is set in Northern Ireland and follows two estranged brothers who come together after their mother’s death, has been nominated in the British short film category.
Speaking on the red carpet, O’Hara said of the film’s reception: “Initially, its quite overwhelming.
“It’s all very new, very big, very pressing, but we’ve levelled out with it.
“I think we’re at a place now where we get to enjoy the experience but we also get to promote ourselves nationally as storytellers, and more people are getting to watch the movie and people love the movie, so the whole thing has been absolutely magic.”
Netflix’s anti-war epic All Quiet On The Western Front leads the pack with 14 nominations.
The Banshees Of Inisherin, starring Colin Farrell, and Everything Everywhere All At Once, featuring Michelle Yeoh, follow close behind with 10 nominations each.
The night could see Irish star Farrell take home the first Bafta of his 25-year career.
He is nominated in the best actor in a leading role category for the first time but faces tough opposition from Austin Butler for Elvis, Brendan Fraser for The Whale, Paul Mescal for Aftersun, Bill Nighy for Living and Daryl McCormack for Good Luck To You, Leo Grande.
All Quiet On The Western Front, directed by German filmmaker Edward Berger and based on the 1929 novel of the same name by Erich Maria Remarque, is nominated for top gongs including best film, best director and best film not in the English language.
It has equalled 2000’s Crouching Tiger, Hidden Dragon as the film not in the English language with the most nominations in Bafta history.
The Banshees Of Inisherin and its cast of Irish talent are being touted as potential big winners of the night.
The film, set on a remote island off the coast of Ireland, sees Farrell’s character devastated when his friend, played by Brendan Gleeson, puts an end to their lifelong friendship.
This year’s Baftas ceremony has moved to the Royal Festival Hall from its previous location of the Royal Albert Hall, which had hosted the show since 2017.
The Prince and Princess of Wales will attend for the first time in three years.
The Bafta Film Awards are this year hosted by Richard E Grant.
