This image released by Universal Pictures shows Cillian Murphy in a scene from "Oppenheimer". (PHOTO / UNIVERSAL PICTURES VIA AP)

LOS ANGELES - Box office hits Barbie and Oppenheimer landed four nominations each for Hollywood's Screen Actors Guild awards on Wednesday, setting up a new battle between the blockbuster films ahead of the Academy Awards.

The movies that squared off in a showdown dubbed Barbenheimer last summer will vie for the top SAG award - best movie cast - alongside The Color Purple, Killers of the Flower Moon and American Fiction.

Margot Robbie arrives at the Governors Awards on Jan 9, 2024, at the Dolby Ballroom in Los Angeles. (PHOTO / AP)

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The SAG awards are closely watched because actors form the largest group of voters for the Oscars, the film industry's top prizes that will be bestowed in March.

"Oppenheimer”, about the making of the atomic bomb, is coming off a dominating night this week at the Golden Globes, where the Christopher Nolan film took home five trophies, including best movie drama

Oppenheimer, about the making of the atomic bomb, is coming off a dominating night this week at the Golden Globes, where the Christopher Nolan film took home five trophies, including best movie drama.

Poor Things, the surprise Globe winner for best movie musical or comedy, was left out of SAG's cast nominees, though star Emma Stone was nominated for best actress and Willem Dafoe for supporting actor.

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Stone will compete against Barbie star Margot Robbie, Golden Globe winner Lily Gladstone of Killers of the Flower Moon, Annette Bening of Nyad and Carey Mulligan of Maestro.

Cillian Murphy, who played scientist J. Robert Oppenheimer, was nominated for best actor. His competition will be Bradley Cooper of Maestro, The Holdovers star Paul Giamatti, Jeffrey Wright for American Fiction and Colman Domingo for Rustin.

SAG voters passed over Flower Moon star Leonardo DiCaprio.

Cillian Murphy (left) winner of the award for best performance by an actor in a motion picture, drama for "Oppenheimer", and Robert Downey Jr., winner of the award for best performance by an actor in a supporting role in any motion picture for "Oppenheimer", pose in the press room at the 81st Golden Globe Awards on Jan 7, 2024, at the Beverly Hilton in Beverly Hills, California. (PHOTO / AP)

For Oppenheimer, Robert Downey Jr. and Emily Blunt were nominated for their supporting roles. The other nods for Barbie came for supporting actor Ryan Gosling, who played Ken, and for the movie's stunt performers.

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Succession, about a cutthroat media mogul and his family, led TV categories with five nominations, including best drama series cast. Ted Lasso, The Bear and The Last of Us each received four nods.

This image released by HBO shows Brian Cox in a scene from "Succession". (PHOTO / HBO VIA AP)

For its final season, Succession won the Golden Globe for best TV drama, while season two of restaurant dramedy The Bear prevailed in the TV comedy series category.

Winners of the SAG awards will be handed out at a red-carpet ceremony held in Los Angeles on Feb 24 and streamed live on Netflix.

At the event, SAG will award a lifetime achievement honor to singer, actor and director Barbra Streisand, the star of Funny Girl, A Star is Born and other classic films.