"One Battle After Another" has won the highly coveted Oscar for best picture.

Producer Sara Murphy took the stage alongside Paul Thomas Anderson to accept the final award of the night.

“Getting to make this film with this cast and this crew and Paul has already been the greatest filmmaking experience I can fathom so receiving this award is just beyond -- my heart is exploding with gratitude,” Murphy said.

Anderson closed out the show saying, “What a night, you guys, Let's have a martini. This is amazing. Cheers.”

Other nominees in the category included "Bugonia," "F1," "Frankenstein," "Hamnet," "Marty Supreme," "The Secret Agent," "Sentimental Value," "Sinners" and "Train Dreams."

Jessie Buckley won her first Oscar for best actress in a leading role for her work in "Hamnet."

Buckley, who is Irish, highlighted that today is Mother’s Day in the United Kingdom.

“So I would like to dedicate this to the beautiful chaos of a mother's heart,” she said in her acceptance speech. “We all come from a lineage of women who continue to create against all odds.”

Other nominees in the category were Rose Byrne ("If I Had Legs I'd Kick You") Kate Hudson ("Song Sung Blue"), Renate Reinsve ("Sentimental Value") and Emma Stone ("Bugonia").

Buckley acknowledged her fellow nominees in her speech, saying, “I am inspired by your art and your heart, and I want to work with every single one of you."

Michael B. Jordan won the Oscar for best actor in a leading role for his work in "Sinners."

Jordan highlighted his family in the crowd in his acceptance speech, he also recognized his relationship with 'Sinners" director Ryan Coogler in his speech.

"You're an amazing, amazing person. I'm so honored to call you a collaborator and a friend, and you gave me the opportunity and space for me to be seen, and I love you, too, bro, love you to death," he said.

He finished with a message of gratitude for his supporters, saying, "Thank you for ... betting on me, and I'm going to keep stepping up, and I'm going to keep being the best version of myself I can be."

Other nominees in the category included Timothée Chalamet ("Marty Supreme"), Leonardo DiCaprio ("One Battle After Another"), Ethan Hawke ("Blue Moon") and Wagner Moura ("The Secret Agent").

Paul Thomas Anderson won the Oscar for best director for "One Battle After Another,” his second win of the night after taking home the Oscar for best adapted screenplay.

"The best part about being on a film crew is being with people, because we need each other," he said in his acceptance speech. "This is a wonderful gift, and I'm so happy to call the movies home."

Other nominees in the category were Chloé Zhao ("Hamnet"), Josh Safdie ("Marty Supreme"), Joachim Trier ("Sentimental Value") and Ryan Coogler ("Sinners").

Security around the Oscars is tight amid war in Iran and domestic threats, and officials say they are also monitoring for any protests that may erupt during the red carpet or show.

While there haven't been any reports of protests leading up to the Oscars, LAPD sources told ABC News earlier this week that responses to protests have been mapped out.

President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israel strikes attack targeting military and government sites, according to U.S. officials.

Iran has continued to respond to the operation with missile and drone attacks targeting Israel, regional U.S. bases and multiple Gulf nations. There were also two domestic attacks on Thursday — one at the Temple Israel synagogue in Michigan and the other at Virginia's Old Dominion University — that are being investigated as potentially motivated by the strife in the Middle East.