"Oppenheimer" earned seven Oscars from its 13 total nominations, including the top prize of the night, best picture, as well as best director for Christopher Nolan.
In the lead acting categories, "Poor Things" star Emma Stone took home the award for best actress while "Oppenheimer" star Cillian Murphy took home best actor.
“Oppenheimer” won the Oscar for best film editing.
Film editor Jennifer Lame accepted the award from presenters Arnold Schwarzenegger and Danny DeVito, thanking director Christopher Nolan for taking a chance on her during her speech.
Other nominees in the category included “Anatomy of a Fall,” “The Holdovers,” “Killers of the Flower Moon” and “Poor Things.”
Jennifer Lame accepts the award for Best Film Editing for "Oppenheimer" onstage during the 96th Annual Academy Awards, March 10, 2024, in Hollywood.
Patrick T. Fallon/AFP via Getty Images
Mar 10, 2024, 8:59 PM EDT
Jon Batiste performs 'It Never Went Away'
Jon Batiste took the Oscars stage and performed "It Never Went Away" from "American Symphony," the moving documentary about Batiste and his wife Suleika Jaouad navigating her cancer battle.
Batiste could win his second Oscar tonight for "It Never Went Away," which is nominated for best original song. In 2020, the musician won an Academy Award for best original score for "Soul."
Jon Batiste performs during the 96th Academy Awards in Hollywood, Mar. 10, 2024.
Mike Blake/Reuters
Mar 10, 2024, 8:57 PM EDT
'Godzilla Minus One' wins best visual effects
"Godzilla Minus One" won the Oscar for best visual effects, with the award going to Takashi Yamazaki, Kiyoko Shibuya, Masaki Takahashi and Tatsuji Nojima.
The team behind the fan-favorite Japanese film took to the stage to accept the trophy from "Twins" co-stars Arnold Schwarzenegger and Danny DeVito and paid tribute to one of the film's producers, Shūji Abe, who died in December, and who they said was "lost too soon."
Masaki Takahashi, Takashi Yamazaki, Kiyoko Shibuya and Tatsuji Nojima accept the award for Best Visual Effects for "Godzilla Minus One" during the 96th Annual Academy Awards in Hollywood, CA, March 10, 2024.
Patrick T. Fallon/AFP via Getty Images
Other nominees in the category included "The Creator," "Guardians of the Galaxy Vol. 3," "Mission Impossible - Dead Reckoning Part One" and "Napoleon."
Mar 10, 2024, 8:55 PM EDT
Robert Downey Jr. wins best supporting actor
Robert Downey Jr. won the Oscar for best supporting actor.
The actor won the award for his portrayal of Lewis Strauss in "Oppenheimer."
The award was introduced by previous Oscar winners in the category including Ke Huy Quan, Sam Rockwell, Tim Robbins, Christoph Waltz and Mahershala Ali. They all shared words honoring each nominee before the Oscar was given to Downey.
"Thanks Sam, thanks fellas. You only flubbed one line," Downey joked during his acceptance speech. "I'd like to thank my terrible childhood and the academy, in that order. I'd like to thank my veterinarian -- I mean wife, Susan Downey, over there. She found me, a snarling rescue pet, and you loved me back to life, and that's why I'm here. Thank you."
Robert Downey Jr. accepts the award for Best Actor in a Supporting Role for "Oppenheimer" onstage during the 96th Annual Academy Awards, in Hollywood, Mar. 10, 2024.
Patrick T. Fallon/AFP via Getty Images
"Here's my little secret. I needed this job more than it needed me," he continued. "Chris knew it, Emma made sure that she surrounded me with one of the great casts and crews of all time: Emily, Cillian, Matt Damon, Blunt -- it was fantastic. And I stand here before you a better man because of it."
Downey ended his speech by saying, "What we do is meaningful and the stuff that we decide to make is important," before thanking his stylist, entertainment lawyer and others.
This awards season, Downey's role in "Oppenheimer" earned him a Golden Globe for best performance by a male actor in a supporting role in any motion picture and a Screen Actors Guild Award for outstanding performance by a male actor in a supporting role. Downey and the rest of the "Oppenheimer" cast also won a SAG Award for outstanding performance by a cast in a motion picture.
Other nominees in the category included Sterling K. Brown for "American Fiction," Robert De Niro for "Killers of the Flower Moon," Ryan Gosling for "Barbie" and Mark Ruffalo for "Poor Things."