By Lisa Respers France, Marianne Garvey, Delaney Strunk and Veronica Rocha, CNN
From CNN's Sandra Gonzalez
Renée Zellweger is an Oscar winner again.
With her best actress win for “Judy,” she becomes the seventh female performer in history to have wins in both the lead and supporting actress categories. She previously won best supporting actress in 2004 for "Cold Mountain."
The most recent actress to accomplish this feat was Cate Blanchett, who won best supporting actress for “The Aviator” in 2005 and best actress for “Blue Jasmine” in 2014.
From CNN's Marianne Garvey
Joaquin Phoenix, who took home the Oscar for best actor for his starring role in "Joker," remembered his late brother, actor River Phoenix, in his speech, quoting a lyric he wrote in an old song.
"When he was 17, my brother wrote this lyric, he said, 'Run to the rescue with love and peace will follow,'" Phoenix said.
The actor also admitted to past mistakes, admitting he'd been difficult at times during the course of his career.
"So many people in this room have given me a second chance, and that's when we're at our best, not when we cancel each other for past mistakes," he said.
Let's forgive for our past mistakes, he added.
"When we use love and compassion as our guiding principals, we can create systems of change," Phoenix said. "Not when we cancel each other out for past mistakes, but when we guide each other to grow, for redemption, that is the best of humanity."
From CNN's Sandra Gonzalez
No joke: Joaquin Phoenix is now part of Oscar history.
After winning the best actor award, Phoenix is now the second person to win an Oscar for playing comic book villain The Joker. The first person to win for playing the character was the late Heath Ledger, who posthumously won for playing Joker in “The Dark Knight.”
This is the second time two actors have won Oscars for playing the same character.
In 1972, Marlon Brando won a best actor Oscar for playing Vito Corleone.
Two years later, Robert De Niro won best supporting actor for playing a younger version of the character.
From CNN's Lisa Respers France
Get ready to party Bong Joon Ho!
On Sunday he became the first South Korean to ever win the best director Oscar.
After winning for best international feature film for "Parasite," he said in his acceptance speech: "I thought I was done for the day and ready to relax."
The director said he has a creed: "The most personal is the most creative."
He also paid tribute to fellow nominee, Martin Scorsese.
"When I was in school I would always study Martin Scorsese films," Bong Joon Ho said. "Just to be nominated is a huge honor. I never imagined I would win."
The audience rose to pay Scorsese honor as well.
From CNN's Marianne Garvey
Just after performing his nominated song "(I'm Gonna) Love Me Again," Elton John and his songwriting partner Bernie Taupin took home an Oscar for best song.
Taupin credited the win to "53 years of hammering it out and doing what we do," while John thanked "everyone involved in Rocketman," the movie the song is featured in.
"This is dream for us," John told the crowd, saying, "There's some amazing talent in the room tonight."
He also thanked his twin boys Zachary and Elijah, saying, "Daddy loves you."
Hildur Guðnadóttir won an Oscar tonight for best original score for "Joker."
Guðnadóttir was the only woman nominated in the category.
"To the girls, to the women, to the mothers, to the daughters who hear the music bubbling within, please speak up. We need to hear your voices," she said.
South Korea's "Parasite" made history with its Oscar win for best international feature film. It's officially the first movie from South Korea to be nominated in the category and win.
Director Bong Joon Ho applauded the category for its new name best international feature film.
"I'm so happy to be its first recipient under the new name. I applaud and support the new direction that this change symbolizes," he said.
This is the second win for "Parasite," which took home the Oscar for best original screenplay earlier tonight.
From CNN's Marianne Garvey
Dressed as "Cats" characters and pawing at the microphone stand like a cat toy, Rebel Wilson and James Corden announced "1917" as the winner of visual effects at the Oscars.
The two were a bit of a distraction, remaining on stage in their fur suits as the winners accepted their awards, but it was fantastic.
They poked fun at the disappointing "Cats" reviews by not really saying much at all, although Corden did give us a dry, "Nobody more than us understands the importance of good visual effects."
"Bombshell" just took home an Oscar for makeup and hairstyling.
In the film, Nicole Kidman plays Gretchen Carlson as she wages a legal war against Fox News founder Roger Ailes, played by John Lithgow.
