Leonardo DiCaprio won his first Oscar on Sunday for his leading role in revenge movie "The Revenant."
DiCaprio, 41, had been nominated four times previously for an Oscar over a career spanning 25 years. But he was favorite to finally take home the best actor Academy Award this year for his grueling portrayal of a fur trapper left for dead in an icy wilderness after being mauled by a bear.
The 88th Academy Awards got underway on Sunday with host Chris Rock opening the show with a salvo of jokes targeting the lack of racial diversity among the acting nominees.
"Well, I'm here at the Academy Awards -- otherwise known as the white People's Choice awards. You realize if they nominated hosts, I wouldn't even get this job. Y'all would be watching Neil Patrick Harris right now," joked Rock, as he began his opening monologue.
In the three-hour show, US Vice-President Joe Biden introduced singer Lady Gaga to perform her song “Till It Happens to You” which was among the nominees for the “Best Original Song."
Biden urged the audience at the Academy Awards to take a stand against sexual assault on college campuses.
Biden said he was asking the audience to join millions of Americans in taking a pledge to "intervene in situations where consent has not or cannot be given."
DiCaprio, in the last minute of his speech, said "climate change is real, and it's happening right now. It is the most urgent threat facing our entire species and we need to work together and stop procrastinating."
"We need 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; and for the indigenous people of the world; for the billions and billions of underprivileged people who will be most affected by this; for our children's children; and for all the people out there whose voices have been drowned out by the politics of greed. Let us not take this planet for granted; I do not take tonight for granted," he added.
Here are the award winners of the night;
Best Picture: Spotlight
Best Actor: Leonardo DiCaprio (The Revenant)
Best Actress: Brie Larson (Room)
Best Directing: Alejandro G. Inarritu (The Revenant)
Best Original Song: Writing's On the Wall, Sam Smith (Spectre)
Best Original Score: The Hateful Eight
Best Foreign Language Film: Son of Saul (Hungary)
Best Live Action Short: Stutterer
Best Documentary Feature: Amy
Best Documentary Short: A Girl in the River: The Price of Forgiveness
Best Supporting Actor: Mark Rylance (Bridge of Spies)
Best Animated Feature Film: Inside Out
Best Animated Short: Bear Story
Best Visual Effects: Ex Machina
Best Sound Mixing: Mad Max: Fury Road
Best Sound Editing: Mad Max: Fury Road
Best Film Editing: Mad Max: Fury Road
Best Cinematography: The Revenant
Best Makeup and Hairstyling: Mad Max: Fury Road
Best Production Design: Mad Max: Fury Road
Best Costume Design: Mad Max: Fury Road
Best Supporting Actress: Alicia Vikander (The Danish Girl)
Best Adapted Screenplay: The Big Short
Best Original Screenplay: Spotlight