LOS ANGELES — Happy Oscars Sunday to all who celebrate.

It has been another great year in filmmaking, and the only thing tighter than some of the Oscar races this year has been security for the 98th Academy Awards.

The unusually heavy security has been ramped up amid the ongoing Middle East war and concerns about retaliatory strikes by Iran. There have been no specific threats against the Oscars on Sunday, and last week, Gov. Gavin Newsom said the state has been working collaboratively with local law enforcement agencies and emergency services to ensure vital information is transmitted to keep communities safe.

The Los Angeles Police Department has set up a roughly one-mile security perimeter around the Dolby Theatre that includes uniformed officers, security cameras, K-9 units, and even surveillance drones.

For now, all is calm, and all is bright as heading into Hollywood’s biggest night.

What can we expect at this year’s ceremony?

No awards show is complete without a musical performance, and lucky for us, we have been promised two live performances inspired by the films “Sinners” and “KPop Demon Hunters.”

Sunday night’s show also promises to give us reunion galore. Nicole Kidman and Ewan McGregor will reportedly appear together during the ceremony ahead of the 25th anniversary of “Moulin Rouge.”

One of the most highly expected reunions of the night will be the cast of “Bridesmaids.” Melissa McCarthy, Kristen Wiig, Rose Byrne, Ellie Kemper and Maya Rudolph will come together to celebrate the film’s 15-year anniversary.

Could we also see a “The Devil Wears Prada” reunion? Only time will tell.

The ceremony is also expected to include a celebration of the life of actor/writer/director Rob Reiner, who was killed along with his wife in their Brentwood home, allegedly by their 32-year-old son, Nick. The killings occurred hours after the trio attended a holiday party at the home of comedian Conan O’Brien — who is hosting the Oscar ceremony for the second straight year.

Billy Crystal and Meg Ryan — who co-starred in Reiner’s smash-hit romance “When Harry Met Sally” — are expected to be among those taking to the Oscar stage to pay tribute to the late director.

The Oscars will begin at 4 p.m. PT/ 7 p.m. ET on ABC and Hulu.

Here’s a list of all the nominees. Winners will be in bold as they are announced throughout the ceremony. 

Best Picture

“Bugonia”
“F1”
“Frankenstein”
“Hamnet”
“Marty Supreme”
“One Battle After Another”
“The Secret Agent”
“Sentimental Value”
“Sinners”
“Train Dreams”

Best Actor

Timothée Chalamet, “Marty Supreme”
Leonardo DiCaprio, “One Battle After Another”
Ethan Hawke, “Blue Moon”
Michael B. Jordan, “Sinners”
Wagner Moura, “The Secret Agent”

Best Supporting Actor

Benicio Del Toro, “One Battle After Another”
Jacob Elordi, “Frankenstein”
Delroy Lindo, “Sinners”
Sean Penn, “One Battle After Another”
Stellan Skarsgard, “Sentimental Value”

Best Actress

Jessie Buckley, “Hamnet”
Rose Byrne, “If I Had Legs I’d Kick You”
Kate Hudson, “Song Sung Blue”
Renate Reinsve, “Sentimental Value”
Emma Stone, “Bugonia”

Best Supporting Actress

Elle Fanning, “Sentimental Value”
Inga Ibsdotter Lilleaas, “Sentimental Value”
Amy Madigan, “Weapons”
Wunmi Mosaku, “Sinners”
Teyana Taylor, “One Battle After Another”

Best Director

Chloé Zhao, “Hamnet”
Josh Safdie, “Marty Supreme”
Paul Thomas Anderson, “One Battle After Another”
Joachim Trier, “Sentimental Value”
Ryan Coogler, “Sinners”

Best Animated Feature Film

“Arco”
“Elio”
“KPop Demon Hunters”
“Little Amélie or the Character of Rain”
“Zootopia 2”

Best Animated Short Film

“Butterfly”
“Forevergreen”
“The Girl Who Cried Pearls”
“Retirement Plan”
“The Three Sisters”

Casting

“Hamnet,” Nina Gold
“Marty Supreme,” Jennifer Venditti
“One Battle After Another,” Cassandra Kulukundis
“The Secret Agent,” Gabriel Domingues
“Sinners,” Francine Maisler

Cinematography

“Frankenstein,” Dan Laustsen
“Marty Supreme,” Darius Khondji
“One Battle After Another,” Michael Bauman
“Sinners,” Autumn Durald Arkapaw
“Train Dreams,” Adolpho Veloso

Costume Design

“Avatar: Fire and Ash,” Deborah L. Scott
“Frankenstein,” Kate Hawley
“Hamnet,” Malgosia Turzanska
“Marty Supreme,” Miyako Bellizzi
“Sinners,” Ruth E. Carter

Documentary Feature Film

“The Alabama Solution”
“Come See Me in the Good Light”
“Cutting Through Rocks”
“Mr. Nobody Against Putin”
“The Perfect Neighbor”

Documentary Short Film

“All the Empty Rooms”
“Armed Only with a Camera: The Life and Death of Brent Renaud”
“Children No More: Were and Are Gone”
“The Devil Is Busy”
“Perfectly a Strangeness”

Film Editing

“F1,” Stephen Mirrione
“Marty Supreme,” Ronald Bronstein and Josh Safdie
“One Battle After Another,” Andy Jurgensen
“Sentimental Value,” Olivier Bugge Coutté
“Sinners,” Michael P. Shawver

Best International Feature Film

“The Secret Agent” (Brazil)
“It Was Just an Accident” (France)
“Sentimental Value” (Norway)
“Sirat” (Spain)
“The Voice of Hind Rajab” (Tunisia)

Best Live Action Short Film

“Butcher’s Stain”
“A Friend of Dorothy”
“Jane Austen’s Period Drama”
“The Singers”
“Two People Exchanging Saliva”

Makeup and Hairstyling

“Frankenstein”
“Kokuho”
“Sinners”
“The Smashing Machine”
“The Ugly Stepsister”

Original Score

“Bugonia,” Jerskin Fendrix
“Frankenstein,” Alexandre Desplat
“Hamnet,” Max Richter
“One Battle After Another,” Jonny Greenwood
“Sinners,” Ludwig Goransson

Original Song

“Dear Me” from “Diane Warren: Relentless”
“Golden” from “KPop Demon Hunters”
“I Lied To You” from “Sinners”
“Sweet Dreams Of Joy” from “Viva Verdi!”
“Train Dreams” from “Train Dreams”

Production Design

“Frankenstein”
“Hamnet”
“Marty Supreme”
“One Battle After Another”
“Sinners”

Sound

“F1”
“Frankenstein”
“One Battle After Another”
“Sinners”
“Sirat”

Visual Effects

“Avatar: Fire and Ash”
“F1”
“Jurassic World Rebirth”
“The Lost Bus”
“Sinners”

Adapted Screenplay

“Bugonia,” Will Tracy
“Frankenstein,” Guillermo Del Toro
“Hamnet,” Chloé Zhao and Maggie O’Farrell
“One Battle After Another,” Paul Thomas Anderson
“Train Dreams,” Clint Bentley and Greg Kwedar

Original Screenplay

“Blue Moon,” Robert Kaplow
“It Was Just an Accident,” Jafar Panahi
“Marty Supreme,” Ronald Bronstein and Josh Safdie
“Sentimental Value,” Eskil Vogt and Joachim Trier
“Sinners,” Ryan Coogler