All the Oscar winners and the best pictures from 91st Academy Awards

The 91st Academy Awards have concluded with historic wins for diversity at the Dolby Theatre in California.

British actress Olivia Colman won best actress at the Oscars for her performance in The Favourite, while Green Book won best picture, Alfonso Cuaron won best director for Roma and Rami Malek was crowned best actor for Bohemian Rhapsody.

Spike Lee won his first competitive Oscar for best adapted screenplay to his white supremacist drama BlacKkKlansman.

Queen launched the ceremony with a medley of hits, as Hollywood's most prestigious ceremony sought to prove that it's still 'champion of the world' after last year's record-low ratings.

Here's a list of all the Oscars winners, along with some of the best pictures from the night:

  • Best supporting actress: Regina King, If Beale Street Could Talk

Regina King poses with the award for best performance by an actress in a supporting role for If Beale Street Could Talk. Credit: AP

  • Best supporting actor: Mahershala Ali, Green Book

Mahershala Ali accepts the award for best performance by an actor in a supporting role for Green Book. Credit: AP

  • Foreign language film: Mexico's Roma

  • Cinematography: Alfonso Cuaron, Roma

Alfonso Cuaron accepts the award for best cinematography for Roma. Credit: AP

  • Best animated film: Spider-Man: Into the Spider-Verse

Bob Persichetti, Peter Ramsey, Rodney Rothman, Phil Lord and Christopher Miller pose with the award for best animated feature film for Spider-Man: Into the Spider-Verse. Credit: AP

  • Documentary feature: Free Solo

Elizabeth Chai Vasarhelyi, from left, Jimmy Chin, Evan Hayes, and Shannon Dill pose in the press room with the award for best documentary feature for Free Solo. Credit: PA

  • Makeup and hairstyling: Vice

Kate Biscoe, from left, Greg Cannom, and Patricia Dehaney pose with the award for best makeup and hairstyling for Vice. Credit: AP

  • Costume design: Ruth Carter, Black Panther

Ruth E. Carter poses with the award for best costume design for Black Panther. Credit: AP

  • Production design: Black Panther

Jay Hart, left, and Hannah Beachler kiss their awards for best production design for Black Panther. Credit: AP

  • Sound Editing: Bohemian Rhapsody

Nina Hartstone, left, and John Warhurst kiss their awards for best sound editing for Bohemian Rhapsody. Credit: AP

  • Sound Mixing: Bohemian Rhapsody

Paul Massey, from left, Tim Cavagin, and John Casali pose with the award for best sound mixing for Bohemian Rhapsody. Credit: AP

  • Film Editing: John Ottman, Bohemian Rhapsody

John Ottman poses with the award for best film editing for Bohemian Rhapsody. Credit: AP

  • Animated short film: Bao

Becky Neiman-Cobb, left, and Domee Shi pose with the award for best animated short for Bao. Credit: AP

  • Documentary short subject: Period. End of Sentence

Melissa Berton, left, and Rayka Zehtabchi pose with the award for best documentary short subject for Period. End of Sentence. Credit: AP

  • Visual effects: First Man

Ian Hunter, from left, Paul Lambert, Tristan Myles and J.D. Schwalm accept the award for best visual effects for First Man. Credit: AP

  • Live action short film: Skin

Guy Nattiv, left, and Jaime Ray Newman pose with award for best live action short film for Skin. Credit: AP

  • Original screenplay: Green Book

Brian Hayes Currie, from left, Peter Farrelly and Nick Vallelonga accept the award for best original screenplay for Green Book. Credit: AP

  • Adapted screenplay: BlacKkKlansman

Charlie Wachtel, left, and Spike Lee accept the award for best adapted screenplay for BlacKkKlansman. Credit: AP

  • Original score: Black Panther

Ludwig Goransson accepts the award for best original score for Black Panther. Credit: AP

  • Original song: Shallow from A Star Is Born

Mark Ronson, from left, Anthony Rossomando and Lady Gaga accept the award for best original song for Shallow from A Star Is Born. Credit: AP

  • Best actor: Rami Malek, Bohemian Rhapsody

Rami Malek accepts the award for best performance by an actor in a leading role for Bohemian Rhapsody. Credit: AP

  • Best actress: Olivia Coleman, The Favourite

Frances McDormand, left, presents Olivia Colman with the award for best performance by an actress in a leading role for The Favourite. Credit: AP

  • Best director: Alfonso Cuaron, Roma

Alfonso Cuaron accepts the award for best director for Roma. Credit: AP

  • Best picture: Green Book

Peter Farrelly, center, and the cast and crew of Green Book.