The BAFTA for leading actress has gone to Cate Blanchett for her performance as a conductor in the psychological film Tár.
Tearfully, she accepted the gong as she thanked her mother and director Todd Field.
Cate praised the other actress' nominated in the category and said that 2022 had been an "extraordinary year for women".
Actress Cate said: "All of my fellow nominees the conversation with all of you off the screen and on the screen have been nothing short of remarkable and we know that we're just the tip of the iceberg.
"Every year, these idiosyncratic remarkable performances just break down the myth that women experience is monolithic."
"Thank you BAFTA for recognising all of us we sit in dialogue with one another," she said.
She added her role as Lydia Tar "was a dangerous and career-ending potential undertaking".
Holding back tears, she continued: "This really does belong, a part to my family thank you so much for letting me go because this did take it a lot and it did take me away from you.
"Thank you darling and to my mum for holding the fort and my four extraordinary children."
All Quiet on the Western Front dominated this year's BAFTAs taking home seven awards, including best film.
It also won best adapted screenplay, best film not in the English language and best director for Edward Berger.
With seven wins, the movie broke the BAFTA record for the most awards won by a film not in English.
The Banshees of Inisherin was among the other big winners, winning outstanding British film and best original screenplay while Irish actors Kerry Condon and Barry Keoghan won best supporting actress and actor.
Director Martin McDonagh said: "Making such a sad film shouldn't have been this much fun, but it was because of [the cast]."
Baz Luhrmann's Elvis Presley biopic was another big winner, taking home four prizes - best casting, costume design, makeup and hair and best leading actor.
In his acceptance speech, Austin Butler, who played the legendary singer in Elvis, said: "This is truly extraordinary. To my fellow nominees, I am in awe of you. I am so grateful for all these times we've been able to spend together."
He added: "I want to thank the Presley family, I cannot thank you enough for your love. I hope I've made you proud."
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