Film drama Nomadland has scooped three Oscars including best picture, while British stars Sir Anthony Hopkins and Daniel Kaluuya have won acting awards.
Nomadland's Chloe Zhao made history as the first woman of colour and second woman to win best director.
Sir Anthony, 83, is the oldest winner of best actor, while Kaluuya is the first black British actor to win an Oscar - for the best supporting award.
British actress-turned-writer/director Emerald Fennell won a screenplay award.
She won best original screenplay for Promising Young Woman, which she also directed.
Frances McDormand won best actress for her role in Nomadland, while veteran South Korean actress Yuh-Jung Youn won best supporting actress for Minari.
The trophies were handed out in one of the grand halls at Los Angeles's stylish Union Station to allow for a Covid-safe ceremony, while many UK-based nominees were at a venue in London - although Sir Anthony was at neither.