The 88th Academy Awards got underway with host Chris Rock launching the show, after Hollywood's finest walked up a sun-drenched Oscars red carpet. Live updates below.
Leonardo DiCaprio wins best actor - finally
Hollywood A-lister Leonardo DiCaprio finally bagged Oscars gold on Sunday for his grueling star turn in "The Revenant," 22 years after his first Academy Award nomination.
DiCaprio edged out Bryan Cranston ("Trumbo"), Matt Damon ("The Martian"), Michael Fassbender ("Steve Jobs") and Eddie Redmayne ("The Danish Girl") to take the best actor statuette.
DiCaprio won a standing ovation as he accepted the award -- one of the most highly anticipated moments of the night. He had been nominated six times in total, five of them for acting roles.
The 41-year-old film veteran thanked a long list of figures who have helped him in his career, including Martin Scorsese, before speaking on his passion -- climate change.
"Climate change is real. It is happening right now. It is the most urgent threat facing our entire species and we need to work together and stop procrastinating," he said to applause.
"We need to support leaders around the world who do not speak for the big polluters, the big corporations, but who speak for all of humanity, for the indigenous people of the world," he said.
'Spotlight' takes home best picture Oscar
"Spotlight," a searing portrait of The Boston Globe's investigation into child sex abuse in the Catholic Church, won a surprise Oscar for best picture on Sunday at the 88th Academy Awards.
The movie, which has picked up a string of honors on its way to Oscars glory, beat rivals "The Big Short," "Bridge of Spies," "Brooklyn," "Mad Max: Fury Road," "The Martian," "Room," and "The Revenant."
Brie Larson wins best actress Oscar
Brie Larson won the best actress Oscar on Sunday for her searing performance as a kidnapped mother in 'Room', catapulting her to the top of Hollywood's A-list.
The 26-year-old Larson beat fellow nominees Cate Blanchett ("Carol"), Jennifer Lawrence ("Joy"), Charlotte Rampling ("45 Years") and Saoirse Ronan ("Brooklyn").
Inarritu wins best director Oscar for 'The Revenant'
Alejandro Gonzalez Inarritu entered Hollywood lore Sunday, giving Mexico a best director triumph at the Oscars for a third straight year with the epic vengeance and survival story "The Revenant."
Inarritu beat Adam McKay ("The Big Short"), George Miller ("Mad Max: Fury Road"), Lenny Abrahamson ("Room") and Tom McCarthy ("Spotlight") to the honor.
Morricone wins best original score Oscar for 'the hateful eight'
Legendary Italian composer Ennio Morricone picked up a best original score Oscar on Sunday for his work on Quentin Tarantino's bloody mystery tale "The Hateful Eight."
Morricone beat rivals John Williams ("Star Wars: The Force Awakens"), Thomas Newman ("Bridge of Spies"), Carter Burwell ("Carol") and Johann Johannsson ("Sicario") to the coveted honor.
It was a first competitive win for the 87-year-old, although he was awarded a lifetime achievement Oscar in 2006.
"My tribute goes to the other nominees, and in particular to the esteemed John Williams," he said.
"There isn't a great soundtrack without a great movie that inspires it. I want to thank Quentin Tarantino for having chosen me to make this extraordinary (score)."
Sam Smith wins best original song
Sam Smith's song from the latest James Bond film is the winner of the Academy Award for best original song.
Smith and Jimmy Napes won for "Writing's On the Wall" from "Spectre." Adele's song "Skyfall" for the previous Bond film won the Academy Award in 2013.
Smith was overcome with emotion while accepting the award, referencing an article that stated that there was no openly gay Oscar winner.
Smith dedicated his win to the LGBT community and said, "I stand here tonight as a proud gay man and I hope that we can all stand together as equals one day."
Hungarian drama 'Son of Saul' wins best foreign film
"Son of Saul," the harrowing drama about a Sonderkommando at the Auschwitz-Birkenau concentration camp, won the best foreign language film award at the Oscars Sunday night.
The Hungarian film from first-time director Laszlo Nemes was largely expected to win the prize and has been sweeping many of the awards from the Golden Globes to the Independent Spirit Awards.
"Even in the darkest hours of mankind there's the voice within us that allows us to remain human," said Nemes after accepting the award.
Also nominated were Colombia's "Embrace of the Serpent," Jordan's "Theeb," and Denmark's "A War."
Amy Winehouse documentary wins Oscar
An intimate look at the life of late singer Amy Winehouse is the winner of the best feature documentary Academy Award.
"Amy" won the documentary honor at the ceremony. Director Asif Kapadia used archival footage and testimonials to offer new insights into Winehouse, who died in 2011 from accidental alcohol poisoning.
The film won the Grammy Award for best music film earlier this month.
The best documentary short Oscar was awarded to the film, "A Girl in the River: The Price of Forgiveness."
Chris Rock’s takes aim at #OscarsSoWhite
Rock, the outspoken black comedian chosen to host the Oscars months before the selection of an all-white acting nominee line-up for a second year, welcomed viewers to what he called "the white People's Choice awards."
Speculating on why the furor over diversity in the industry had taken root this year, rather than in the 1950s or 1960s, Rock said black Americans had "real things to protest at the time."
"We were too busy being raped and lynched to care about who won best cinematography," he said.
Turning to the present day, Rock joked that things would be different at Sunday's Academy Awards, saying the traditional segment honoring stars who died is "just going to be black people that were shot by the cops on their way to the movies."
The under-representation of people of color in the film and TV industry prompted pledges to bring more women and minorities into the industry and the Academy.
Alicia Vikander wins supporting actress Oscar
It was the first Oscar for Sweden's Vikander, 27, who had a breakout year in 2015 with starring roles in six films, including "Ex Machina," and "Testament of Youth."
An emotional Vikander thanked her parents, "The Danish Girl" director Tom Hooper and co-star Eddie Redmayne.
"Eddie, thank you for being the best acting partner. You raised my game," she said.
Vikander was the youngest nominee in the category, beating far more experienced actresses including Kate Winslet, Rachel McAdams and Jennifer Jason Leigh. Rooney Mara, another rising star, rounded out the competition.
Vikander, whose mother is an actress, got her start acting on stage as a child in her native Sweden. She then trained as a ballet dancer for 10 years before being sidelined by injuries and turned back to acting.
'Inside Out' wins best animated feature film
The adventure comedy "Inside Out" from Walt Disney's Pixar studio won the Oscar on Sunday for best animated feature film.
The film by Pixar, which made "Toy Story" nearly two decades ago and "Up" in 2009, is set in the mind of a young girl, Riley, where the motions of Joy, Anger, Disgust, Fear and Sadness conflict over how best to navigate her family's move to San Francisco.
List of winners so far:
Best Picture: "Spotlight."
Actor: Leonardo DiCaprio, "The Revenant."
Actress: Brie Larson, "Room."
Supporting Actor: Mark Rylance, "Bridge of Spies."
Supporting Actress: Alicia Vikander, "The Danish Girl."
Directing: Alejandro G. Inarritu, "The Revenant."
Foreign Language Film: "Son of Saul."
Adapted Screenplay: "The Big Short."
Original Screenplay: "Spotlight."
Animated Feature Film: "Inside Out."
Production Design: "Mad Max: Fury Road."
Cinematography: "The Revenant."
Sound Mixing: "Mad Max: Fury Road."
Sound Editing: "Mad Max: Fury Road."
Original Score: "The Hateful Eight."
Original Song: "Writing's on the Wall" from "Spectre."
Costume Design: "Mad Max: Fury Road."
Documentary Feature: "Amy."
Documentary (short subject): "A Girl in the River: The Price of Forgiveness."
Film Editing: "Mad Max: Fury Road."
Makeup and Hairstyling: "Mad Max: Fury Road."
Animated Short Film: "Bear Story."
Live Action Short Film: "Stutterer."
Visual Effects: "Ex Machina."