"Oppenheimer," Christopher Nolan's epic take on the father of the atomic bomb, was the big winner at Sunday night's Academy Awards.

The film won seven Oscars, including best picture, best director (Nolan), best actor (Cillian Murphy) and best supporting actor (Robert Downey Jr.).

Emma Stone ("Poor Things") won best actress for the second time in her career. "Poor Things" also won Oscars for best production design, best costume design and best makeup and hairstyling.

Da'Vine Joy Randolph won best supporting actress for her role in "The Holdovers."

Emma Stone celebrates with presenters after <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_8bcb34fe85f544a1c388605d70244b34" target="_blank">winning the Oscar for best actress</a>. "This is really overwhelming," said the "Poor Things" star while accepting her award. This is Stone's second Oscar for best actress. She also won in 2017 for "La La Land."
Emma Stone celebrates with presenters after winning the Oscar for best actress. "This is really overwhelming," said the "Poor Things" star while accepting her award. This is Stone's second Oscar for best actress. She also won in 2017 for "La La Land."
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Curtain operators work backstage during the show.
Curtain operators work backstage during the show.
Robert Gauthier/Los Angeles Times/Getty Images
Cillian Murphy celebrates after winning the Oscar for best actor ("Oppenheimer"). "I'm a very proud Irishman standing here tonight," <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_5b9575b476729d8bee0163293d63766b" target="_blank">he said</a>.
Cillian Murphy celebrates after winning the Oscar for best actor ("Oppenheimer"). "I'm a very proud Irishman standing here tonight," he said.
Patrick T. Fallon/AFP/Getty Images
The late Matthew Perry is seen on screen during the annual <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%23h_464b02fd7803781350ac5cea2c07a8e2" target="_blank">In Memoriam segment</a>, which pays tribute to those we have lost over the past year.
The late Matthew Perry is seen on screen during the annual In Memoriam segment, which pays tribute to those we have lost over the past year.
Patrick T. Fallon/AFP/Getty Images
Kate McKinnon helps her "Barbie" co-star America Ferrera backstage.
Kate McKinnon helps her "Barbie" co-star America Ferrera backstage.
Robert Gauthier/Los Angeles Times/Getty Images
"Barbie" director Greta Gerwig, left, congratulates Billie Eilish after Eilish and her brother, Finneas, won the Oscar for best original song ("What Was I Made For?").
"Barbie" director Greta Gerwig, left, congratulates Billie Eilish after Eilish and her brother, Finneas, won the Oscar for best original song ("What Was I Made For?").
Chris Pizzello/Invision/AP
Gosling is joined by "Barbie" co-stars and backup dancers as <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_bbc0aa315abaed044f0e5c3e37b05635" target="_blank">he performs the Oscar-nominated song "I'm Just Ken."</a>
Gosling is joined by "Barbie" co-stars and backup dancers as he performs the Oscar-nominated song "I'm Just Ken."
Patrick T. Fallon/AFP/Getty Imagges
Danny DeVito, left, presents the Oscar for best visual effects to Takashi Yamazaki and "Godzilla Minus One."
Danny DeVito, left, presents the Oscar for best visual effects to Takashi Yamazaki and "Godzilla Minus One."
Patrick T. Fallon/AFP/Getty Images
Comic Guillermo Rodriguez raises a margarita and <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_7cb30b220d8b5ce362cf685867554d76" target="_blank">threatens to toast everyone in the audience</a> during the show. He thanked "his wife" Charlize Theron (not his wife), who appeared shocked when he mentioned her.
Comic Guillermo Rodriguez raises a margarita and threatens to toast everyone in the audience during the show. He thanked "his wife" Charlize Theron (not his wife), who appeared shocked when he mentioned her.
Mike Blake/Reuters
Robert Downey Jr. poses in the press room with the Oscar he won for best supporting actor. "I'd like to thank my terrible childhood and the Academy," <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_b112e2122ef918d2e30085505f824aae" target="_blank">he said in his acceptance speech</a>. "In that order."
Robert Downey Jr. poses in the press room with the Oscar he won for best supporting actor. "I'd like to thank my terrible childhood and the Academy," he said in his acceptance speech. "In that order."
Robyn Beck/AFP/Getty Images
Members of the crew watch the show from backstage.
Members of the crew watch the show from backstage.
Robert Gauthier/Los Angeles Times/Getty Images
Ukrainian director Mstyslav Chernov accepts the Oscar for best documentary feature film ("20 Days in Mariupol"). "Probably I will be the first director on this stage who will say, 'I wish I never made this film,' " <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%23h_a51bb9d9b0663c1bafad749b433b97d8" target="_blank">Chernov said</a>. "I wish to be able to exchange this (for) Russia never attacking Ukraine, never occupying our cities."
Ukrainian director Mstyslav Chernov accepts the Oscar for best documentary feature film ("20 Days in Mariupol"). "Probably I will be the first director on this stage who will say, 'I wish I never made this film,' " Chernov said. "I wish to be able to exchange this (for) Russia never attacking Ukraine, never occupying our cities."
Patrick T. Fallon/AFP/Getty Images
Jon Batiste performs the Oscar-nominated song "It Never Went Away" from the film "American Symphony."
Jon Batiste performs the Oscar-nominated song "It Never Went Away" from the film "American Symphony."
Chris Pizzello/Invision/AP
Gosling and Emily Blunt <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_7aa523c4b40057ef03b7ed2bead42316" target="_blank">were in competitive mode</a> while on stage together during the show. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_7aa523c4b40057ef03b7ed2bead42316" target="_blank">They exchanged playful barbs</a> over their their films "Barbie" and "Oppenheimer."
Gosling and Emily Blunt were in competitive mode while on stage together during the show. They exchanged playful barbs over their their films "Barbie" and "Oppenheimer."
Mike Blake/Reuters
From left, Sam Rockwell, Tim Robbins, Ke Huy Quan, Christoph Waltz and Mahershala Ali present the nominees for best supporting actor.
From left, Sam Rockwell, Tim Robbins, Ke Huy Quan, Christoph Waltz and Mahershala Ali present the nominees for best supporting actor.
Jack Gruber/USA Today Network
John Cena and Holly Waddington talk backstage after Cena presented Waddington with the Oscar for best costume design ("Poor Things").
John Cena and Holly Waddington talk backstage after Cena presented Waddington with the Oscar for best costume design ("Poor Things").
Robert Gauthier/Los Angeles Times/Getty Images
Scott George and The Osage Singers perform "Wahzhazhe (A Song for My People)," the Oscar-nominated song from the film "Killers of the Flower Moon."
Scott George and The Osage Singers perform "Wahzhazhe (A Song for My People)," the Oscar-nominated song from the film "Killers of the Flower Moon."
Kevin Winter/Getty Images
Cena presents the Oscar for best costume design. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_839d82945edb96c8ca36efd588094968" target="_blank">During the bit</a>, show host Jimmy Kimmel coaxed Cena out on stage after Cena had second thoughts about streaking across stage. "Costumes are so important," Cena joked before presenting the Oscar to Waddington and "Poor Things."
Cena presents the Oscar for best costume design. During the bit, show host Jimmy Kimmel coaxed Cena out on stage after Cena had second thoughts about streaking across stage. "Costumes are so important," Cena joked before presenting the Oscar to Waddington and "Poor Things."
Frank Micelotta/Disney/Getty Images
Cord Jefferson <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_fecdd5d185f86c01ca5d7a59d86095fd" target="_blank">accepts the Oscar for best adapted screenplay</a> ("American Fiction"). "I just feel so much joy being here," said Jefferson, who wrote and directed the film. "I felt so much joy making this movie and I want other people to experience that." He called for more filmmakers to be given opportunities to make movies because "the next Martin Scorsese is out there, the next Greta (Gerwig) is out there."
Cord Jefferson accepts the Oscar for best adapted screenplay ("American Fiction"). "I just feel so much joy being here," said Jefferson, who wrote and directed the film. "I felt so much joy making this movie and I want other people to experience that." He called for more filmmakers to be given opportunities to make movies because "the next Martin Scorsese is out there, the next Greta (Gerwig) is out there."
Kevin Winter/Getty Images
Eilish and her brother, Finneas, <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_ddbaaddfffa6fa781c0850608b03efdd" target="_blank">perform their Oscar-nominated song "What Was I Made For?"</a> from the movie "Barbie." It won the Oscar later in the show.
Eilish and her brother, Finneas, perform their Oscar-nominated song "What Was I Made For?" from the movie "Barbie." It won the Oscar later in the show.
Kevin Winter/Getty Images
Gosling and "Barbie" co-star Margot Robbie hold hands during the show.
Gosling and "Barbie" co-star Margot Robbie hold hands during the show.
Jack Gruber/USA Today Network
Oscars are lined up backstage during the show.
Oscars are lined up backstage during the show.
Robert Gauthier/Los Angeles Times/Getty Images
Justine Triet and Arthur Harari accept the Oscar for best original screenplay ("Anatomy of a Fall").
Justine Triet and Arthur Harari accept the Oscar for best original screenplay ("Anatomy of a Fall").
Rich Polk/Variety/Getty Images
From left, Brad Booker, Dave Mullins and Sean Lennon celebrate after winning the Oscar for best animated short film ("War Is Over! Inspired by the Music of John and Yoko").
From left, Brad Booker, Dave Mullins and Sean Lennon celebrate after winning the Oscar for best animated short film ("War Is Over! Inspired by the Music of John and Yoko").
Kevin Winter/Getty Images
The five nominees for best animated short film are seen behind presenters Chris Hemsworth and Anya Taylor-Joy.
The five nominees for best animated short film are seen behind presenters Chris Hemsworth and Anya Taylor-Joy.
Chris Pizzello/Invision/AP
Da'Vine Joy Randolph accepts the Oscar for <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_8564703fe6672b20de4bdc02661e688a" target="_blank">best supporting actress</a>. "I pray to God that I get to do this more than once," Randolph said in her teary acceptance speech. "I thank you for seeing me."
Da'Vine Joy Randolph accepts the Oscar for best supporting actress. "I pray to God that I get to do this more than once," Randolph said in her teary acceptance speech. "I thank you for seeing me."
Mike Blake/Reuters
From left, Mary Steenburgen, Lupita Nyong'o, Jamie Lee Curtis, Rita Moreno, and Regina King present the nominees for best supporting actress.
From left, Mary Steenburgen, Lupita Nyong'o, Jamie Lee Curtis, Rita Moreno, and Regina King present the nominees for best supporting actress.
Jack Gruber/USA Today Network
Kimmel delivers his <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_f303ab02aa6cf4dc6308e4ab09b4bc98" target="_blank">opening monologue</a>. He pointed out that while the show began an hour earlier this year, folks can't count on it not ending late: "In fact, we are already 5 minutes over and I am not joking."
Kimmel delivers his opening monologue. He pointed out that while the show began an hour earlier this year, folks can't count on it not ending late: "In fact, we are already 5 minutes over and I am not joking."
Mike Blake/Reuters
Members of the Osage Nation <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_86275623b92d4fc851a6f54944d29cc9" target="_blank">pose on the red carpet</a> before the show. Some members of the tribe collaborated with director Martin Scorsese on "Killers of the Flower Moon," a film that recounts a dark and painful chapter of Osage history.
Members of the Osage Nation pose on the red carpet before the show. Some members of the tribe collaborated with director Martin Scorsese on "Killers of the Flower Moon," a film that recounts a dark and painful chapter of Osage history.
Mario Anzuoni/Reuters
Messi the dog, one of the stars of "Anatomy of a Fall," attends the show.
Messi the dog, one of the stars of "Anatomy of a Fall," attends the show.
Kevin Winter/Getty Images
Gosling poses with fans while walking on the red carpet.
Gosling poses with fans while walking on the red carpet.
Mario Anzuoni/Reuters
Ariana Grande arrives to the Dolby Theatre. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2024%2F03%2F10%2Fstyle%2Fred-carpet-oscars-2024-looks%2Findex.html" target="_blank">See this year's best red carpet looks</a>.
Ariana Grande arrives to the Dolby Theatre. See this year's best red carpet looks.
John Locher/Invision/AP
Film producer Nadim Cheikhrouha wears a red lapel pin on the red carpet. The same pin was also seen on Ramy Youssef, Mark Ruffalo and Billie Eilish. <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2Fentertainment%2Flive-news%2Foscars-academy-awards-03-10-24%2Fh_e1d87d22f44731c0aefccb26fe997660" target="_blank">The pins call for a ceasefire</a> in the Israel-Hamas war.
Film producer Nadim Cheikhrouha wears a red lapel pin on the red carpet. The same pin was also seen on Ramy Youssef, Mark Ruffalo and Billie Eilish. The pins call for a ceasefire in the Israel-Hamas war.
Frederic J. Brown/AFP/Getty Images
Randolph poses on the red carpet.
Randolph poses on the red carpet.
Sarah Meyssonnier/Reuters