Leonardo DiCaprio has finally won his first Oscar for survival epic The Revenant, after six nominations.
He was named best actor at the 88th Academy Awards, with Brie Larson named best actress for Room.
Spotlight took home the best picture Oscar with Mad Max: Fury Road picking up the most awards of the night, with six accolades.
Mark Rylance won the best supporting actor Oscar, with fellow Briton Sam Smith winning best original song.
Is Hollywood racist?'
The ceremony had been boycotted
by some Hollywood figures protesting about the lack of ethnic diversity
among this year's nominees, as all 20 nominees in the best acting or
supporting acting categories are white.
Host Chris Rock addressed
the controversy head on as he launched the ceremony, and it was a theme
that was returned to several times during the night.
Rock
commented he had "counted at least 15 black people" in the montage that
opened the ceremony, before welcoming people to the "white People's
Choice awards".
"You
realise if they nominated hosts, I wouldn't even get this job," he
quipped. "Y'all would be watching Neil Patrick Harris right now."
Rock
added: "Everyone wants to know is Hollywood racist? You have to go at
it the right way. Is it burning-cross racist? Fetch-me-some-lemonade
racist? No.
"It's a different kind of racist. Is Hollywood racist?
You're damn right it's racist but it's sorority racist. It's like: We
like you Rhonda, but you're not a Kappa.''
Among the winners for
Mad Max: Fury Road - nominated for 10 Oscars including best director for
George Miller - was British designer Jenny Beavan, for best costume
design.
The Revenant won three of the 12 awards for which it was
nominated. Alejandro Inarritu also won best director and Emmanuel
Lubezki won his third Oscar for cinematography in a row, having won in
2015 for Birdman and 2014 for Gravity.
DiCaprio received a standing ovation as he picked up his award, after
five acting nominations and one nomination as producer of best picture
nominee Wolf of Wall Street.
He thanked his director and co-star
Tom Hardy for his "fierce talent on screen" and "friendship off screen"
before campaigning for action to combat climate change, saying making
The Revenant was "about man's relationship to the natural world".
"Climate change is real - it is happening right now," said DiCaprio.
"It is the most urgent threat facing our species, and we need to work
collectively together and stop procrastinating."
He asked the
audience to "support leaders around the world who do not speak for the
big polluters or the big corporations but who speak for all of humanity,
for the indigenous people of the world, for the billions and billions
of underprivileged people who'll be affected by this".
He added: "Let us not take this planet for granted. I do not take tonight for granted."
It is 22 years since he was first nominated for an Academy Award,
having been nominated for best supporting actor for What's Eating
Gilbert Grape.
Speaking to reporters after his win, DiCaprio
said: "I feel very honoured, to share this has been an amazing
experience, to sit there and talk about the film.
"I also got to
talk about something I have been obsessed with - the environment and
climate change - on a platform with hundreds of millions of people
watching worldwide."
The Revenant won three awards, including best director for Alejandro Inarritu
As he accepted his award, Inarritu said it was a "great opportunity
to our generation to liberate ourselves from all prejudice", saying the
colour of someone's skin should be "as irrelevant as the length of their
hair".
It is the fourth Oscar for Inarritu, having won best
director, best original screenplay (as co-writer) and best picture (as
producer) for Birdman in 2015.
Larson had won praise for her role as abducted woman Ma in Room, based on the book by Emma Donoghue.
The cast of Spotlight, including Mark
Ruffalo, Rachel McAdams, Liev Schreiver and Michael Keaton reacted with
joy after the film was named best picture
The actress thanked everyone involved in the film, including young co-star Jacob Tremblay, who plays her son.
After
her win, she said: "Who I was by the time the movie was over was so far
from where I started. It was a long process in trying to find myself.
"Now I feel strong, to be holding this gold guy is an incredible metaphor for how I feel inside."