Popular western actor Sam Elliott slammed the director on a podcast earlier this month, saying, "What the f*** does this woman from down there, New Zealand, know about the American West? And why in the f*** does she shoot this movie in New Zealand and call it Montana and say, 'This is the way it was'."
Campion hit back at the criticism, labelling it "sexist" and said Elliot was acting like a "b****".
Australian comedian Rebel Wilson is hosting the event, which also featured Dame Shirley Bassey performing a James Bond theme to mark 60 years of the franchise.
Will Smith has beaten out Leonardo DiCaprio and Benedict Cumberbatch for Best Leading Actor for his turn as tennis great Richard Williams in King Richard.
The Daily Telegraph's film critic Robbie Collin called it a "shock" win for the actor, commenting, "If Benedict Cumberbatch can't win at home for his career-capping performance in Jane Campion's The Power of the Dog, where can he?"
And Joanna Scanlan has taken home the coveted Best Leading Actress for her role in indie debut After Love, beating Lady Gaga.
Earlier, sci-fi epic Dune took home the first two awards of the night in the Best Special Effects and Cinematography categories.
An incredible moment for Brian Connor, Paul Lambert, Tristan Myles and Gerd Nefzer as they accept the Award for Special Visual Effects #EEBAFTAspic.twitter.com/1Fh0tb7E6i
Belfast Don't Look Up Dune Licorice Pizza WINNER: The Power of the Dog
The Power of the Dog actor Benedict Cumberbatch and his wife Sophie Hunter on the BAFTAs red carpet. Photo / Getty Images
Outstanding British film
After Love Ali & Ava Boiling Point Cyrano Everybody's Talking About Jamie House of Gucci Last Night in Soho No Time to Die Passing WINNER: Belfast
Leading actress
Lady Gaga - House of Gucci Alana Haim - Licorice Pizza Emilia Jones - Coda Renate Reinsve- The Worst Person in the World Tessa Thompson - Passing WINNER: Joanna Scanlan - After Love
Leading actor
Adeel Akhtar - Ali & Ava Mahershala Ali - Swan Song Benedict Cumberbatch - The Power of the Dog Leonardo DiCaprio - Don't Look Up Stephen Graham - Boiling Point WINNER: Will Smith - King Richard
Supporting actress
Caitriona Balfe - Belfast Jessie Buckley - The Lost Daughter Ann Dowd - Mass Aunjanue Ellis - King Richard Ruth Negga - Passing WINNER: Ariana DeBose - West Side Story
Supporting actor
Mike Faist - West Side Story Ciaran Hinds - Belfast Woody Norman - C'mon C'mon Jesse Plemons - The Power of the Dog Kodi Smit-McPhee - The Power of the Dog WINNER: Troy Kotsur - Coda
Aleem Khan - After Love Ryusuke Hamaguchi - Drive My Car Audrey Diwan - Happening Paul Thomas Anderson - Licorice Pizza Julia Ducournau - Titane WINNER: Jane Campion - The Power of the Dog
Outstanding debut by a British writer, director or producer
After Love - Aleem Khan (writer/director) Boiling Point - James Cummings (writer), Hester Ruoff (producer) Keyboard Fantasies - Posy Dixon (writer/director), Liv Proctor (producer) Passing - Rebecca Hall (writer/director) WINNER: The Harder They Fall - Jeymes Samuel (writer/director)
Film not in the English language
The Hand of God Parallel Mothers Petite Maman The Worst Person in the World WINNER: Drive My Car
WINNER: Summer of Soul (Or, When The Revolution Could Not Be Televised)
Animated film
Flee Luca The Mitchells vs The Machines WINNER: Encanto
Original screenplay
Being The Ricardos - Aaron Sorkin Belfast - Sir Kenneth Branagh Don't Look Up - Adam McKay King Richard - Zach Baylin Adapted screenplay Winner: Coda - Sian Heder Drive My Car - Ryusuke Hamaguchi Dune - Denis Villeneuve The Lost Daughter - Maggie Gyllenhaal The Power of the Dog - Jane Campion WINNER: Licorice Pizza - Paul Thomas Anderson
Original score
Being the Ricardos - Daniel Pemberton Don't Look Up - Nicholas Britell The French Dispatch - Alexandre Desplat The Power of the Dog - Jonny Greenwood WINNER: Dune - Hans Zimmer
Boiling Point - Carolyn McLeod Dune - Francine Maisler The Hand of God - Massimo Appolloni, Annamaria Sambucco King Richard - Rich Delia, Avy Kaufman WINNER: West Side Story - Cindy Tolan
Cinematography
Nightmare Alley - Dan Laustsen No Time To Die - Linus Sandgren The Power of the Dog - Ari Wegner The Tragedy of Macbeth - Bruno Delbonnel WINNER: Dune - Greig Fraser
Costume design
Cyrano - Massimo Cantini Parrini Dune - Robert Morgan, Jacqueline West The French Dispatch - Milena Canonero Nightmare Alley - Luis Sequeira WINNER: Cruella - Jenny Beavan
Editing
Belfast - Una Ni Dhonghaile Dune - Joe Walker Licorice Pizza - Andy Jurgensen Summer Of Soul (Or, When The Revolution Could Not Be Televised) - Joshua L Pearson WINNER: No Time To Die - Tom Cross, Elliot Graham
Production design
Cyrano - Sarah Greenwood, Katie Spencer The French Dispatch - Adam Stockhausen, Rena DeAngelo Nightmare Alley - Tamara Deverell, Shane Vieau West Side Story - Adam Stockhausen, Rena DeAngelo WINNER: Dune - Patrice Vermette, Zsuzsanna Sipos
Make-up and hair
Cruella - Nadia Stacey, Naomi Donne Cyrano - Alessandro Bertolazzi, Sian Miller Dune - Love Larson, Donald Mowat House of Gucci - Frederic Aspiras, Jana Carboni, Giuliano Mariano, Sarah Nicole Tanno WINNER: The Eyes of Tammy Faye - Linda Dowds, Stephanie Ingram, Justin Raleigh
Last Night In Soho - Colin Nicolson, Julian Slater, Tim Cavagin, Dan Morgan No Time To Die - James Harrison, Simon Hayes, Paul Massey, Oliver Tarney, Mark Taylor A Quiet Place Part II - Erik Aadahl, Michael Barosky, Brandon Proctor, Ethan Van Der Ryn West Side Story - Brian Chumney, Tod Maitland, Andy Nelson, Gary Rydstrom WINNER: Dune - Mac Ruth, Mark Mangini, Doug Hemphill, Theo Green, Ron Bartlett
Special visual effects
Free Guy - Swen Gillberg, Bryan Grill, Nikos Kalaitzidis, Daniel Sudick Ghostbusters: Afterlife - Aharon Bourland, Sheena Duggal, Pier Lefebvre, Alessandro Ongaro The Matrix Resurrections - Tom Debenham, Huw J Evans, Dan Glass, JD Schwaim No Time To Die - Mark Bakowski, Chris Corbould, Joel Green, Charlie Noble WINNER: Dune - Brian Connor, Paul Lambert, Tristan Myles, Gerd Nefzer
British short film
Femme The Palace Stuffed Three Meetings of the Extraordinary Committee WINNER: The Black Cop
British short animation
Affairs of the Art Night of the Living Dread WINNER: Do Not Feed the Pigeons
